2496 lines
75 KiB
C#
2496 lines
75 KiB
C#
//
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// System.Web.UI.WebControls.GridView.cs
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//
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// Authors:
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.ComponentModel;
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using System.Web.UI;
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using System.Security.Permissions;
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using System.Text;
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using System.IO;
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using System.Reflection;
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namespace System.Web.UI.WebControls
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{
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[SupportsEventValidation]
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[DesignerAttribute ("System.Web.UI.Design.WebControls.GridViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
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[ControlValuePropertyAttribute ("SelectedValue")]
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[DefaultEventAttribute ("SelectedIndexChanged")]
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[DataKeyProperty ("DataKey")]
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[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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public class GridView: CompositeDataBoundControl, ICallbackEventHandler, ICallbackContainer, IPostBackEventHandler, IPostBackContainer, IPersistedSelector
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, IDataKeysControl, IDataBoundListControl, IDataBoundControl, IFieldControl
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{
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Table table;
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GridViewRowCollection rows;
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GridViewRow bottomPagerRow;
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GridViewRow topPagerRow;
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IOrderedDictionary currentEditRowKeys;
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IOrderedDictionary currentEditNewValues;
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IOrderedDictionary currentEditOldValues;
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ITemplate pagerTemplate;
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ITemplate emptyDataTemplate;
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PropertyDescriptor[] cachedKeyProperties;
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PropertyDescriptor[] cachedSuffixKeyProperties;
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// View state
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DataControlFieldCollection columns;
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PagerSettings pagerSettings;
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TableItemStyle alternatingRowStyle;
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TableItemStyle editRowStyle;
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TableItemStyle emptyDataRowStyle;
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TableItemStyle footerStyle;
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TableItemStyle headerStyle;
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TableItemStyle pagerStyle;
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TableItemStyle rowStyle;
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TableItemStyle selectedRowStyle;
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TableItemStyle sortedAscendingCellStyle;
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TableItemStyle sortedAscendingHeaderStyle;
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TableItemStyle sortedDescendingCellStyle;
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TableItemStyle sortedDescendingHeaderStyle;
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List <DataKey> _dataKeySuffixList;
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DataKeyArray rowSuffixKeys;
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List <DataKey> _dataKeyList;
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DataKeyArray keys;
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DataKey oldEditValues;
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AutoGeneratedFieldProperties[] autoFieldProperties;
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string [] dataKeyNames = null;
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readonly string[] emptyKeys = new string[0];
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IEnumerator _dataEnumerator;
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static readonly object PageIndexChangedEvent = new object();
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static readonly object PageIndexChangingEvent = new object();
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static readonly object RowCancelingEditEvent = new object();
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static readonly object RowCommandEvent = new object();
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static readonly object RowCreatedEvent = new object();
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static readonly object RowDataBoundEvent = new object();
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static readonly object RowDeletedEvent = new object();
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static readonly object RowDeletingEvent = new object();
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static readonly object RowEditingEvent = new object();
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static readonly object RowUpdatedEvent = new object();
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static readonly object RowUpdatingEvent = new object();
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static readonly object SelectedIndexChangedEvent = new object();
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static readonly object SelectedIndexChangingEvent = new object();
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static readonly object SortedEvent = new object();
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static readonly object SortingEvent = new object();
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// Control state
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int pageIndex;
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int selectedIndex = -1;
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int editIndex = -1;
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int pageCount = 0;
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SortDirection sortDirection = SortDirection.Ascending;
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string sortExpression;
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public GridView ()
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{
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EnableModelValidation = true;
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}
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public event EventHandler PageIndexChanged {
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add { Events.AddHandler (PageIndexChangedEvent, value); }
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remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
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}
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public event GridViewPageEventHandler PageIndexChanging {
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add { Events.AddHandler (PageIndexChangingEvent, value); }
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remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
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}
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public event GridViewCancelEditEventHandler RowCancelingEdit {
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add { Events.AddHandler (RowCancelingEditEvent, value); }
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remove { Events.RemoveHandler (RowCancelingEditEvent, value); }
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}
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public event GridViewCommandEventHandler RowCommand {
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add { Events.AddHandler (RowCommandEvent, value); }
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remove { Events.RemoveHandler (RowCommandEvent, value); }
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}
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public event GridViewRowEventHandler RowCreated {
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add { Events.AddHandler (RowCreatedEvent, value); }
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remove { Events.RemoveHandler (RowCreatedEvent, value); }
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}
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public event GridViewRowEventHandler RowDataBound {
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add { Events.AddHandler (RowDataBoundEvent, value); }
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remove { Events.RemoveHandler (RowDataBoundEvent, value); }
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}
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public event GridViewDeletedEventHandler RowDeleted {
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add { Events.AddHandler (RowDeletedEvent, value); }
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remove { Events.RemoveHandler (RowDeletedEvent, value); }
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}
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public event GridViewDeleteEventHandler RowDeleting {
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add { Events.AddHandler (RowDeletingEvent, value); }
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remove { Events.RemoveHandler (RowDeletingEvent, value); }
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}
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public event GridViewEditEventHandler RowEditing {
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add { Events.AddHandler (RowEditingEvent, value); }
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remove { Events.RemoveHandler (RowEditingEvent, value); }
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}
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public event GridViewUpdatedEventHandler RowUpdated {
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add { Events.AddHandler (RowUpdatedEvent, value); }
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remove { Events.RemoveHandler (RowUpdatedEvent, value); }
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}
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public event GridViewUpdateEventHandler RowUpdating {
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add { Events.AddHandler (RowUpdatingEvent, value); }
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remove { Events.RemoveHandler (RowUpdatingEvent, value); }
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}
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public event EventHandler SelectedIndexChanged {
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add { Events.AddHandler (SelectedIndexChangedEvent, value); }
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remove { Events.RemoveHandler (SelectedIndexChangedEvent, value); }
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}
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public event GridViewSelectEventHandler SelectedIndexChanging {
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add { Events.AddHandler (SelectedIndexChangingEvent, value); }
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remove { Events.RemoveHandler (SelectedIndexChangingEvent, value); }
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}
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public event EventHandler Sorted {
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add { Events.AddHandler (SortedEvent, value); }
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remove { Events.RemoveHandler (SortedEvent, value); }
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}
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public event GridViewSortEventHandler Sorting {
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add { Events.AddHandler (SortingEvent, value); }
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remove { Events.RemoveHandler (SortingEvent, value); }
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}
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protected virtual void OnPageIndexChanged (EventArgs e)
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{
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if (Events != null) {
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EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnPageIndexChanging (GridViewPageEventArgs e)
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{
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if (Events != null) {
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GridViewPageEventHandler eh = (GridViewPageEventHandler) Events [PageIndexChangingEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event PageIndexChanging which wasn't handled.", ID));
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}
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protected virtual void OnRowCancelingEdit (GridViewCancelEditEventArgs e)
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{
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if (Events != null) {
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GridViewCancelEditEventHandler eh = (GridViewCancelEditEventHandler) Events [RowCancelingEditEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event RowCancelingEdit which wasn't handled.", ID));
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}
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protected virtual void OnRowCommand (GridViewCommandEventArgs e)
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{
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if (Events != null) {
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GridViewCommandEventHandler eh = (GridViewCommandEventHandler) Events [RowCommandEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnRowCreated (GridViewRowEventArgs e)
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{
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if (Events != null) {
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GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowCreatedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnRowDataBound (GridViewRowEventArgs e)
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{
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if (Events != null) {
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GridViewRowEventHandler eh = (GridViewRowEventHandler) Events [RowDataBoundEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnRowDeleted (GridViewDeletedEventArgs e)
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{
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if (Events != null) {
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GridViewDeletedEventHandler eh = (GridViewDeletedEventHandler) Events [RowDeletedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnRowDeleting (GridViewDeleteEventArgs e)
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{
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if (Events != null) {
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GridViewDeleteEventHandler eh = (GridViewDeleteEventHandler) Events [RowDeletingEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event RowDeleting which wasn't handled.", ID));
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}
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protected virtual void OnRowEditing (GridViewEditEventArgs e)
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{
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if (Events != null) {
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GridViewEditEventHandler eh = (GridViewEditEventHandler) Events [RowEditingEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event RowEditing which wasn't handled.", ID));
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}
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protected virtual void OnRowUpdated (GridViewUpdatedEventArgs e)
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{
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if (Events != null) {
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GridViewUpdatedEventHandler eh = (GridViewUpdatedEventHandler) Events [RowUpdatedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnRowUpdating (GridViewUpdateEventArgs e)
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{
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if (Events != null) {
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GridViewUpdateEventHandler eh = (GridViewUpdateEventHandler) Events [RowUpdatingEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event RowUpdating which wasn't handled.", ID));
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}
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protected virtual void OnSelectedIndexChanged (EventArgs e)
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{
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if (Events != null) {
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EventHandler eh = (EventHandler) Events [SelectedIndexChangedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnSelectedIndexChanging (GridViewSelectEventArgs e)
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{
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if (Events != null) {
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GridViewSelectEventHandler eh = (GridViewSelectEventHandler) Events [SelectedIndexChangingEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnSorted (EventArgs e)
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{
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if (Events != null) {
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EventHandler eh = (EventHandler) Events [SortedEvent];
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if (eh != null) eh (this, e);
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}
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}
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protected virtual void OnSorting (GridViewSortEventArgs e)
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{
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if (Events != null) {
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GridViewSortEventHandler eh = (GridViewSortEventHandler) Events [SortingEvent];
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if (eh != null) {
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eh (this, e);
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return;
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}
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}
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if (!IsBoundUsingDataSourceID)
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throw new HttpException (String.Format ("The GridView '{0}' fired event Sorting which wasn't handled.", ID));
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}
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[WebCategoryAttribute ("Paging")]
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[DefaultValueAttribute (false)]
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public virtual bool AllowPaging {
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get {
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object ob = ViewState ["AllowPaging"];
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if (ob != null)
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return (bool) ob;
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return false;
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}
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set {
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if (value == AllowPaging)
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return;
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ViewState ["AllowPaging"] = value;
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RequireBinding ();
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[DefaultValueAttribute (false)]
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public virtual bool AllowSorting {
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get {
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object ob = ViewState ["AllowSorting"];
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if (ob != null)
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return (bool) ob;
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return false;
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}
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set {
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if (value == AllowSorting)
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return;
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ViewState ["AllowSorting"] = value;
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RequireBinding ();
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}
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}
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[WebCategoryAttribute ("Styles")]
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[PersistenceMode (PersistenceMode.InnerProperty)]
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[NotifyParentProperty (true)]
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[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
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public TableItemStyle AlternatingRowStyle {
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get {
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if (alternatingRowStyle == null) {
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alternatingRowStyle = new TableItemStyle ();
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if (IsTrackingViewState)
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alternatingRowStyle.TrackViewState();
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}
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return alternatingRowStyle;
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[DefaultValueAttribute (false)]
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public virtual bool AutoGenerateEditButton {
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get {
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object ob = ViewState ["AutoGenerateEditButton"];
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if (ob != null)
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return (bool) ob;
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return false;
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}
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set {
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if (value == AutoGenerateEditButton)
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return;
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ViewState ["AutoGenerateEditButton"] = value;
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RequireBinding ();
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[DefaultValueAttribute (false)]
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public virtual bool AutoGenerateDeleteButton {
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get {
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object ob = ViewState ["AutoGenerateDeleteButton"];
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if (ob != null)
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return (bool) ob;
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return false;
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}
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set {
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if (value == AutoGenerateDeleteButton)
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return;
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ViewState ["AutoGenerateDeleteButton"] = value;
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RequireBinding ();
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[DefaultValueAttribute (false)]
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public virtual bool AutoGenerateSelectButton {
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get {
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object ob = ViewState ["AutoGenerateSelectButton"];
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if (ob != null)
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return (bool) ob;
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return false;
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}
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set {
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if (value == AutoGenerateSelectButton)
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return;
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ViewState ["AutoGenerateSelectButton"] = value;
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RequireBinding ();
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}
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}
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[WebCategoryAttribute ("Behavior")]
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[DefaultValueAttribute (true)]
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public virtual bool AutoGenerateColumns {
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get {
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object ob = ViewState ["AutoGenerateColumns"];
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if (ob != null)
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return (bool) ob;
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return true;
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}
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set {
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if (value == AutoGenerateColumns)
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return;
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ViewState ["AutoGenerateColumns"] = value;
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RequireBinding ();
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}
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}
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[UrlPropertyAttribute]
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[WebCategoryAttribute ("Appearance")]
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[DefaultValueAttribute ("")]
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[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
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public virtual string BackImageUrl {
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get {
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if (ControlStyleCreated)
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return ((TableStyle) ControlStyle).BackImageUrl;
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return String.Empty;
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}
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set { ((TableStyle) ControlStyle).BackImageUrl = value; }
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}
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[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
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[BrowsableAttribute (false)]
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public virtual GridViewRow BottomPagerRow {
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get {
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EnsureDataBound ();
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return bottomPagerRow;
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}
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}
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[WebCategoryAttribute ("Accessibility")]
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[DefaultValueAttribute ("")]
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[LocalizableAttribute (true)]
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public virtual string Caption {
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get {
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object ob = ViewState ["Caption"];
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if (ob != null)
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return (string) ob;
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return String.Empty;
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}
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set { ViewState ["Caption"] = value; }
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}
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[WebCategoryAttribute ("Accessibility")]
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[DefaultValueAttribute (TableCaptionAlign.NotSet)]
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public virtual TableCaptionAlign CaptionAlign
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{
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get {
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object o = ViewState ["CaptionAlign"];
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if(o != null)
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return (TableCaptionAlign) o;
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return TableCaptionAlign.NotSet;
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}
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set { ViewState ["CaptionAlign"] = value; }
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}
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[WebCategoryAttribute ("Layout")]
|
|
[DefaultValueAttribute (-1)]
|
|
public virtual int CellPadding
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{
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get {
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if (ControlStyleCreated)
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return ((TableStyle) ControlStyle).CellPadding;
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return -1;
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}
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set { ((TableStyle) ControlStyle).CellPadding = value; }
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}
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[WebCategoryAttribute ("Layout")]
|
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[DefaultValueAttribute (0)]
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public virtual int CellSpacing
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{
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get {
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if (ControlStyleCreated)
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return ((TableStyle) ControlStyle).CellSpacing;
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return 0;
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}
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set { ((TableStyle) ControlStyle).CellSpacing = value; }
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}
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|
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[EditorAttribute ("System.Web.UI.Design.WebControls.DataControlFieldTypeEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
|
|
[MergablePropertyAttribute (false)]
|
|
[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
|
|
[DefaultValueAttribute (null)]
|
|
[WebCategoryAttribute ("Misc")]
|
|
public virtual DataControlFieldCollection Columns {
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get {
|
|
if (columns == null) {
|
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columns = new DataControlFieldCollection ();
|
|
columns.FieldsChanged += new EventHandler (OnFieldsChanged);
|
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if (IsTrackingViewState)
|
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((IStateManager)columns).TrackViewState ();
|
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}
|
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return columns;
|
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}
|
|
}
|
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|
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[BrowsableAttribute(false)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
|
|
public IAutoFieldGenerator ColumnsGenerator {
|
|
get;
|
|
set;
|
|
}
|
|
|
|
[DefaultValueAttribute (null)]
|
|
[WebCategoryAttribute ("Data")]
|
|
[TypeConverter (typeof(StringArrayConverter))]
|
|
[EditorAttribute ("System.Web.UI.Design.WebControls.DataFieldEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
|
|
public virtual string[] DataKeyNames {
|
|
get {
|
|
if (dataKeyNames != null)
|
|
return dataKeyNames;
|
|
return emptyKeys;
|
|
}
|
|
set {
|
|
dataKeyNames = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
List <DataKey> DataKeyList {
|
|
get {
|
|
if (_dataKeyList == null)
|
|
_dataKeyList = new List <DataKey> ();
|
|
|
|
return _dataKeyList;
|
|
}
|
|
}
|
|
List <DataKey> DataKeySuffixList {
|
|
get {
|
|
if (_dataKeySuffixList == null)
|
|
_dataKeySuffixList = new List <DataKey> ();
|
|
|
|
return _dataKeySuffixList;
|
|
}
|
|
}
|
|
[BrowsableAttribute (false)]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
public virtual DataKeyArray DataKeys {
|
|
get {
|
|
if (keys == null) {
|
|
keys = new DataKeyArray (DataKeyList);
|
|
if (IsTrackingViewState)
|
|
((IStateManager) keys).TrackViewState ();
|
|
}
|
|
return keys;
|
|
}
|
|
}
|
|
|
|
DataKey OldEditValues {
|
|
get {
|
|
if (oldEditValues == null) {
|
|
oldEditValues = new DataKey (new OrderedDictionary ());
|
|
}
|
|
return oldEditValues;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Misc")]
|
|
[DefaultValueAttribute (-1)]
|
|
public virtual int EditIndex {
|
|
get { return editIndex; }
|
|
set {
|
|
if (value == editIndex)
|
|
return;
|
|
editIndex = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle EditRowStyle {
|
|
get {
|
|
if (editRowStyle == null) {
|
|
editRowStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
editRowStyle.TrackViewState();
|
|
}
|
|
return editRowStyle;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle EmptyDataRowStyle {
|
|
get {
|
|
if (emptyDataRowStyle == null) {
|
|
emptyDataRowStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
emptyDataRowStyle.TrackViewState();
|
|
}
|
|
return emptyDataRowStyle;
|
|
}
|
|
}
|
|
|
|
[DefaultValue (null)]
|
|
[TemplateContainer (typeof(GridViewRow), BindingDirection.OneWay)]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[Browsable (false)]
|
|
public virtual ITemplate EmptyDataTemplate {
|
|
get { return emptyDataTemplate; }
|
|
set { emptyDataTemplate = value; }
|
|
}
|
|
|
|
[LocalizableAttribute (true)]
|
|
[WebCategoryAttribute ("Appearance")]
|
|
[DefaultValueAttribute ("")]
|
|
public virtual string EmptyDataText {
|
|
get {
|
|
object ob = ViewState ["EmptyDataText"];
|
|
if (ob != null)
|
|
return (string) ob;
|
|
return String.Empty;
|
|
}
|
|
set {
|
|
if (value == EmptyDataText)
|
|
return;
|
|
ViewState ["EmptyDataText"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Behavior")]
|
|
[DefaultValueAttribute (false)]
|
|
public virtual bool EnableSortingAndPagingCallbacks {
|
|
get {
|
|
object ob = ViewState ["EnableSortingAndPagingCallbacks"];
|
|
if (ob != null)
|
|
return (bool) ob;
|
|
return false;
|
|
}
|
|
set {
|
|
if (value == EnableSortingAndPagingCallbacks)
|
|
return;
|
|
ViewState ["EnableSortingAndPagingCallbacks"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[MonoTODO ("Make use of it in the code")]
|
|
[DefaultValue (true)]
|
|
public virtual bool EnableModelValidation {
|
|
get;
|
|
set;
|
|
}
|
|
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
[BrowsableAttribute (false)]
|
|
public virtual GridViewRow FooterRow {
|
|
get {
|
|
if (table != null) {
|
|
for (int index = table.Rows.Count - 1; index >= 0; index--) {
|
|
GridViewRow row = (GridViewRow) table.Rows [index];
|
|
switch (row.RowType) {
|
|
case DataControlRowType.Separator:
|
|
case DataControlRowType.Pager:
|
|
continue;
|
|
case DataControlRowType.Footer:
|
|
return row;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DefaultValue (null)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle FooterStyle {
|
|
get {
|
|
if (footerStyle == null) {
|
|
footerStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
footerStyle.TrackViewState();
|
|
}
|
|
return footerStyle;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Appearance")]
|
|
[DefaultValueAttribute (GridLines.Both)]
|
|
public virtual GridLines GridLines {
|
|
get {
|
|
if (ControlStyleCreated)
|
|
return ((TableStyle) ControlStyle).GridLines;
|
|
return GridLines.Both;
|
|
}
|
|
set { ((TableStyle) ControlStyle).GridLines = value; }
|
|
}
|
|
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
[BrowsableAttribute (false)]
|
|
public virtual GridViewRow HeaderRow {
|
|
get {
|
|
if (table != null) {
|
|
for (int index = 0, total = table.Rows.Count; index < total; index++) {
|
|
GridViewRow row = (GridViewRow) table.Rows [index];
|
|
switch (row.RowType) {
|
|
case DataControlRowType.Separator:
|
|
case DataControlRowType.Pager:
|
|
continue;
|
|
case DataControlRowType.Header:
|
|
return row;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DefaultValue (null)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle HeaderStyle {
|
|
get {
|
|
if (headerStyle == null) {
|
|
headerStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
headerStyle.TrackViewState();
|
|
}
|
|
return headerStyle;
|
|
}
|
|
}
|
|
|
|
[Category ("Layout")]
|
|
[DefaultValueAttribute (HorizontalAlign.NotSet)]
|
|
public virtual HorizontalAlign HorizontalAlign {
|
|
get {
|
|
if (ControlStyleCreated)
|
|
return ((TableStyle) ControlStyle).HorizontalAlign;
|
|
return HorizontalAlign.NotSet;
|
|
}
|
|
set { ((TableStyle) ControlStyle).HorizontalAlign = value; }
|
|
}
|
|
|
|
[BrowsableAttribute (false)]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
public virtual int PageCount {
|
|
get { return pageCount; }
|
|
private set { pageCount = value; }
|
|
}
|
|
|
|
[WebCategoryAttribute ("Paging")]
|
|
[BrowsableAttribute (true)]
|
|
[DefaultValueAttribute (0)]
|
|
public virtual int PageIndex {
|
|
get { return pageIndex; }
|
|
set {
|
|
if (value == pageIndex)
|
|
return;
|
|
pageIndex = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[DefaultValueAttribute (10)]
|
|
[WebCategoryAttribute ("Paging")]
|
|
public virtual int PageSize {
|
|
get {
|
|
object ob = ViewState ["PageSize"];
|
|
if (ob != null)
|
|
return (int) ob;
|
|
return 10;
|
|
}
|
|
set {
|
|
if (value == PageSize)
|
|
return;
|
|
ViewState ["PageSize"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Paging")]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Content)]
|
|
[NotifyParentPropertyAttribute (true)]
|
|
[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
|
|
public virtual PagerSettings PagerSettings {
|
|
get {
|
|
if (pagerSettings == null) {
|
|
pagerSettings = new PagerSettings (this);
|
|
if (IsTrackingViewState)
|
|
((IStateManager)pagerSettings).TrackViewState ();
|
|
}
|
|
return pagerSettings;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle PagerStyle {
|
|
get {
|
|
if (pagerStyle == null) {
|
|
pagerStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
pagerStyle.TrackViewState();
|
|
}
|
|
return pagerStyle;
|
|
}
|
|
}
|
|
|
|
|
|
[DefaultValue (null)]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[Browsable (false)]
|
|
[TemplateContainerAttribute(typeof(GridViewRow))]
|
|
public virtual ITemplate PagerTemplate {
|
|
get { return pagerTemplate; }
|
|
set { pagerTemplate = value; }
|
|
}
|
|
|
|
[DefaultValueAttribute ("")]
|
|
[WebCategoryAttribute ("Accessibility")]
|
|
// [TypeConverterAttribute (typeof(System.Web.UI.Design.DataColumnSelectionConverter)]
|
|
public virtual string RowHeaderColumn {
|
|
get {
|
|
object ob = ViewState ["RowHeaderColumn"];
|
|
if (ob != null)
|
|
return (string) ob;
|
|
return String.Empty;
|
|
}
|
|
set {
|
|
if (value == RowHeaderColumn)
|
|
return;
|
|
ViewState ["RowHeaderColumn"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
[BrowsableAttribute (false)]
|
|
public virtual GridViewRowCollection Rows {
|
|
get {
|
|
EnsureChildControls ();
|
|
if (rows == null)
|
|
rows = new GridViewRowCollection (new ArrayList ());
|
|
return rows;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle RowStyle {
|
|
get {
|
|
if (rowStyle == null) {
|
|
rowStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
rowStyle.TrackViewState();
|
|
}
|
|
return rowStyle;
|
|
}
|
|
}
|
|
|
|
[BrowsableAttribute (false)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
|
|
public virtual DataKey SelectedDataKey {
|
|
get {
|
|
if (DataKeyNames.Length == 0)
|
|
throw new InvalidOperationException (String.Format ("Data keys must be specified on GridView '{0}' before the selected data keys can be retrieved. Use the DataKeyNames property to specify data keys.", ID));
|
|
|
|
if (selectedIndex >= 0 && selectedIndex < DataKeys.Count)
|
|
return DataKeys [selectedIndex];
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
[MonoTODO]
|
|
[Browsable(false)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
|
|
public virtual DataKey SelectedPersistedDataKey {
|
|
get; set;
|
|
}
|
|
|
|
[MonoTODO]
|
|
DataKey IPersistedSelector.DataKey {
|
|
get { return SelectedPersistedDataKey; }
|
|
set { SelectedPersistedDataKey = value; }
|
|
}
|
|
|
|
[BindableAttribute (true)]
|
|
[DefaultValueAttribute (-1)]
|
|
public virtual int SelectedIndex {
|
|
get { return selectedIndex; }
|
|
set {
|
|
if (rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count) {
|
|
int oldIndex = selectedIndex;
|
|
selectedIndex = -1;
|
|
Rows [oldIndex].RowState = GetRowState (oldIndex);
|
|
}
|
|
selectedIndex = value;
|
|
if (rows != null && selectedIndex >= 0 && selectedIndex < Rows.Count)
|
|
Rows [selectedIndex].RowState = GetRowState (selectedIndex);
|
|
}
|
|
}
|
|
|
|
[BrowsableAttribute (false)]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
public virtual GridViewRow SelectedRow {
|
|
get {
|
|
if (selectedIndex >= 0 && selectedIndex < Rows.Count)
|
|
return Rows [selectedIndex];
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Styles")]
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[NotifyParentProperty (true)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
public TableItemStyle SelectedRowStyle {
|
|
get {
|
|
if (selectedRowStyle == null) {
|
|
selectedRowStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
selectedRowStyle.TrackViewState();
|
|
}
|
|
return selectedRowStyle;
|
|
}
|
|
}
|
|
|
|
[BrowsableAttribute (false)]
|
|
public object SelectedValue {
|
|
get {
|
|
if (SelectedDataKey != null)
|
|
return SelectedDataKey.Value;
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Appearance")]
|
|
[DefaultValueAttribute (false)]
|
|
public virtual bool ShowFooter {
|
|
get {
|
|
object ob = ViewState ["ShowFooter"];
|
|
if (ob != null)
|
|
return (bool) ob;
|
|
return false;
|
|
}
|
|
set {
|
|
if (value == ShowFooter)
|
|
return;
|
|
ViewState ["ShowFooter"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Appearance")]
|
|
[DefaultValueAttribute (true)]
|
|
public virtual bool ShowHeader {
|
|
get {
|
|
object ob = ViewState ["ShowHeader"];
|
|
if (ob != null)
|
|
return (bool) ob;
|
|
return true;
|
|
}
|
|
set {
|
|
if (value == ShowHeader)
|
|
return;
|
|
ViewState ["ShowHeader"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[PersistenceModeAttribute (PersistenceMode.InnerProperty)]
|
|
[BrowsableAttribute (false)]
|
|
[DefaultValueAttribute (SortDirection.Ascending)]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
public virtual SortDirection SortDirection {
|
|
get { return sortDirection; }
|
|
private set {
|
|
if (sortDirection == value)
|
|
return;
|
|
sortDirection = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[BrowsableAttribute (false)]
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
public virtual string SortExpression {
|
|
get {
|
|
if (sortExpression == null)
|
|
return String.Empty;
|
|
return sortExpression;
|
|
}
|
|
private set {
|
|
if (sortExpression == value)
|
|
return;
|
|
sortExpression = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
|
|
[BrowsableAttribute (false)]
|
|
public virtual GridViewRow TopPagerRow {
|
|
get {
|
|
EnsureDataBound ();
|
|
return topPagerRow;
|
|
}
|
|
}
|
|
|
|
[WebCategoryAttribute ("Accessibility")]
|
|
[DefaultValueAttribute (true)]
|
|
public virtual bool UseAccessibleHeader {
|
|
get {
|
|
object ob = ViewState ["UseAccessibleHeader"];
|
|
if (ob != null)
|
|
return (bool) ob;
|
|
return true;
|
|
}
|
|
set {
|
|
if (value == UseAccessibleHeader)
|
|
return;
|
|
ViewState ["UseAccessibleHeader"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
[TypeConverter (typeof(StringArrayConverter))]
|
|
[DefaultValue (null)]
|
|
public virtual string[] ClientIDRowSuffix {
|
|
get;
|
|
set;
|
|
}
|
|
|
|
[BrowsableAttribute(false)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
|
|
public DataKeyArray ClientIDRowSuffixDataKeys {
|
|
get {
|
|
if (rowSuffixKeys == null) {
|
|
rowSuffixKeys = new DataKeyArray (DataKeySuffixList);
|
|
if (IsTrackingViewState)
|
|
((IStateManager) rowSuffixKeys).TrackViewState ();
|
|
}
|
|
|
|
return rowSuffixKeys;
|
|
}
|
|
}
|
|
|
|
[DefaultValue (false)]
|
|
public virtual bool EnablePersistedSelection {
|
|
get {
|
|
throw new NotImplementedException ();
|
|
}
|
|
|
|
set {
|
|
throw new NotImplementedException ();
|
|
}
|
|
}
|
|
|
|
IAutoFieldGenerator IFieldControl.FieldsGenerator {
|
|
get {
|
|
throw new NotImplementedException ();
|
|
}
|
|
|
|
set {
|
|
throw new NotImplementedException ();
|
|
}
|
|
}
|
|
|
|
[DefaultValue (false)]
|
|
public virtual bool ShowHeaderWhenEmpty {
|
|
get { return ViewState.GetBool ("ShowHeaderWhenEmpty", false); }
|
|
set {
|
|
if (value == ShowHeaderWhenEmpty)
|
|
return;
|
|
|
|
ViewState ["ShowHeaderWhenEmpty"] = value;
|
|
RequireBinding ();
|
|
}
|
|
}
|
|
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
[NotifyParentProperty (true)]
|
|
public TableItemStyle SortedAscendingCellStyle {
|
|
get {
|
|
if (sortedAscendingCellStyle == null) {
|
|
sortedAscendingCellStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
((IStateManager)sortedAscendingCellStyle).TrackViewState ();
|
|
}
|
|
|
|
return sortedAscendingCellStyle;
|
|
}
|
|
}
|
|
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
[NotifyParentProperty (true)]
|
|
public TableItemStyle SortedAscendingHeaderStyle {
|
|
get {
|
|
if (sortedAscendingHeaderStyle == null) {
|
|
sortedAscendingHeaderStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
((IStateManager)sortedAscendingHeaderStyle).TrackViewState ();
|
|
}
|
|
|
|
return sortedAscendingHeaderStyle;
|
|
}
|
|
}
|
|
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
[NotifyParentProperty (true)]
|
|
public TableItemStyle SortedDescendingCellStyle {
|
|
get {
|
|
if (sortedDescendingCellStyle == null) {
|
|
sortedDescendingCellStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
((IStateManager)sortedDescendingCellStyle).TrackViewState ();
|
|
}
|
|
|
|
return sortedDescendingCellStyle;
|
|
}
|
|
}
|
|
|
|
[PersistenceMode (PersistenceMode.InnerProperty)]
|
|
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
|
|
[NotifyParentProperty (true)]
|
|
public TableItemStyle SortedDescendingHeaderStyle {
|
|
get {
|
|
if (sortedDescendingHeaderStyle == null) {
|
|
sortedDescendingHeaderStyle = new TableItemStyle ();
|
|
if (IsTrackingViewState)
|
|
((IStateManager)sortedDescendingHeaderStyle).TrackViewState ();
|
|
}
|
|
|
|
return sortedDescendingHeaderStyle;
|
|
}
|
|
}
|
|
public virtual bool IsBindableType (Type type)
|
|
{
|
|
return type.IsPrimitive || type == typeof (string) || type == typeof (decimal) || type == typeof (DateTime) || type == typeof (Guid);
|
|
}
|
|
|
|
// MSDN: The CreateDataSourceSelectArguments method is a helper method called by
|
|
// the GridView control to create the DataSourceSelectArguments object that
|
|
// contains the arguments passed to the data source. In this implementation,
|
|
// the DataSourceSelectArguments object contains the arguments for paging operations.
|
|
protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
|
|
{
|
|
DataSourceSelectArguments arg = DataSourceSelectArguments.Empty;
|
|
DataSourceView view= GetData();
|
|
if (AllowPaging && view.CanPage) {
|
|
arg.StartRowIndex = PageIndex * PageSize;
|
|
if (view.CanRetrieveTotalRowCount) {
|
|
arg.RetrieveTotalRowCount = true;
|
|
arg.MaximumRows = PageSize;
|
|
} else
|
|
arg.MaximumRows = -1;
|
|
}
|
|
|
|
if (IsBoundUsingDataSourceID && !String.IsNullOrEmpty (sortExpression)) {
|
|
if (sortDirection == SortDirection.Ascending)
|
|
arg.SortExpression = sortExpression;
|
|
else
|
|
arg.SortExpression = sortExpression + " DESC";
|
|
}
|
|
|
|
return arg;
|
|
}
|
|
|
|
protected virtual ICollection CreateColumns (PagedDataSource dataSource, bool useDataSource)
|
|
{
|
|
bool autoGenerate = AutoGenerateColumns;
|
|
|
|
if (autoGenerate) {
|
|
IAutoFieldGenerator fieldGenerator = ColumnsGenerator;
|
|
if (fieldGenerator != null)
|
|
return fieldGenerator.GenerateFields (this);
|
|
}
|
|
|
|
ArrayList fields = new ArrayList ();
|
|
|
|
if (AutoGenerateEditButton || AutoGenerateDeleteButton || AutoGenerateSelectButton) {
|
|
CommandField field = new CommandField ();
|
|
field.ShowEditButton = AutoGenerateEditButton;
|
|
field.ShowDeleteButton = AutoGenerateDeleteButton;
|
|
field.ShowSelectButton = AutoGenerateSelectButton;
|
|
fields.Add (field);
|
|
}
|
|
|
|
fields.AddRange (Columns);
|
|
|
|
if (autoGenerate) {
|
|
if (useDataSource)
|
|
autoFieldProperties = CreateAutoFieldProperties (dataSource);
|
|
|
|
if (autoFieldProperties != null) {
|
|
foreach (AutoGeneratedFieldProperties props in autoFieldProperties)
|
|
fields.Add (CreateAutoGeneratedColumn (props));
|
|
}
|
|
}
|
|
|
|
return fields;
|
|
}
|
|
|
|
protected virtual AutoGeneratedField CreateAutoGeneratedColumn (AutoGeneratedFieldProperties fieldProperties)
|
|
{
|
|
return new AutoGeneratedField (fieldProperties);
|
|
}
|
|
|
|
AutoGeneratedFieldProperties[] CreateAutoFieldProperties (PagedDataSource source)
|
|
{
|
|
if(source == null) return null;
|
|
|
|
PropertyDescriptorCollection props = source.GetItemProperties (new PropertyDescriptor[0]);
|
|
Type prop_type = null;
|
|
|
|
var retVal = new List <AutoGeneratedFieldProperties> ();
|
|
|
|
if (props == null) {
|
|
object fitem = null;
|
|
PropertyInfo prop_item = source.DataSource.GetType().GetProperty("Item",
|
|
BindingFlags.Instance | BindingFlags.Static |
|
|
BindingFlags.Public, null, null,
|
|
new Type[] { typeof(int) }, null);
|
|
|
|
if (prop_item != null)
|
|
prop_type = prop_item.PropertyType;
|
|
|
|
if (prop_type == null || prop_type == typeof(object)) {
|
|
IEnumerator en = source.GetEnumerator();
|
|
if (en != null && en.MoveNext ()) {
|
|
fitem = en.Current;
|
|
_dataEnumerator = en;
|
|
}
|
|
if (fitem != null)
|
|
prop_type = fitem.GetType();
|
|
}
|
|
|
|
if (fitem != null && fitem is ICustomTypeDescriptor)
|
|
props = TypeDescriptor.GetProperties(fitem);
|
|
else if (prop_type != null) {
|
|
if (IsBindableType (prop_type)) {
|
|
AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
|
|
((IStateManager)field).TrackViewState();
|
|
field.Name = "Item";
|
|
field.DataField = BoundField.ThisExpression;
|
|
field.Type = prop_type;
|
|
retVal.Add (field);
|
|
} else
|
|
props = TypeDescriptor.GetProperties (prop_type);
|
|
}
|
|
}
|
|
|
|
if (props != null && props.Count > 0) {
|
|
foreach (PropertyDescriptor current in props) {
|
|
if (IsBindableType (current.PropertyType) && (prop_type == null || current.ComponentType == prop_type)) {
|
|
AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
|
|
((IStateManager)field).TrackViewState();
|
|
field.Name = current.Name;
|
|
field.DataField = current.Name;
|
|
for (int i = 0; i < DataKeyNames.Length; i++) {
|
|
if (string.Compare (DataKeyNames [i], current.Name, StringComparison.InvariantCultureIgnoreCase) == 0) {
|
|
field.IsReadOnly = true;
|
|
break;
|
|
}
|
|
}
|
|
field.Type = current.PropertyType;
|
|
retVal.Add (field);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (retVal.Count > 0)
|
|
return retVal.ToArray ();
|
|
else
|
|
return new AutoGeneratedFieldProperties [0];
|
|
}
|
|
|
|
protected virtual GridViewRow CreateRow (int rowIndex, int dataSourceIndex, DataControlRowType rowType, DataControlRowState rowState)
|
|
{
|
|
GridViewRow row = new GridViewRow (rowIndex, dataSourceIndex, rowType, rowState);
|
|
return row;
|
|
}
|
|
|
|
void RequireBinding ()
|
|
{
|
|
if (Initialized)
|
|
RequiresDataBinding = true;
|
|
}
|
|
|
|
protected virtual Table CreateChildTable ()
|
|
{
|
|
return new ContainedTable (this);
|
|
}
|
|
|
|
void CreateHeaderRow (Table mainTable, DataControlField[] fields, bool dataBinding)
|
|
{
|
|
GridViewRow headerRow = CreateRow (-1, -1, DataControlRowType.Header, DataControlRowState.Normal);
|
|
InitializeRow (headerRow, fields);
|
|
OnRowCreated (new GridViewRowEventArgs (headerRow));
|
|
mainTable.Rows.Add (headerRow);
|
|
if (dataBinding) {
|
|
headerRow.DataBind ();
|
|
OnRowDataBound (new GridViewRowEventArgs (headerRow));
|
|
}
|
|
}
|
|
|
|
protected override int CreateChildControls (IEnumerable dataSource, bool dataBinding)
|
|
{
|
|
// clear GridView
|
|
Controls.Clear ();
|
|
table = null;
|
|
rows = null;
|
|
|
|
if (dataSource == null)
|
|
return 0;
|
|
|
|
PagedDataSource pagedDataSource;
|
|
|
|
if (dataBinding) {
|
|
DataSourceView view = GetData ();
|
|
pagedDataSource = new PagedDataSource ();
|
|
pagedDataSource.DataSource = dataSource;
|
|
|
|
if (AllowPaging) {
|
|
pagedDataSource.AllowPaging = true;
|
|
pagedDataSource.PageSize = PageSize;
|
|
if (view.CanPage) {
|
|
pagedDataSource.AllowServerPaging = true;
|
|
if (SelectArguments.RetrieveTotalRowCount)
|
|
pagedDataSource.VirtualCount = SelectArguments.TotalRowCount;
|
|
}
|
|
if (PageIndex >= pagedDataSource.PageCount)
|
|
pageIndex = pagedDataSource.PageCount - 1;
|
|
pagedDataSource.CurrentPageIndex = PageIndex;
|
|
}
|
|
|
|
PageCount = pagedDataSource.PageCount;
|
|
} else {
|
|
pagedDataSource = new PagedDataSource ();
|
|
pagedDataSource.DataSource = dataSource;
|
|
if (AllowPaging) {
|
|
pagedDataSource.AllowPaging = true;
|
|
pagedDataSource.PageSize = PageSize;
|
|
pagedDataSource.CurrentPageIndex = PageIndex;
|
|
}
|
|
}
|
|
|
|
bool createPager = AllowPaging && (PageCount >= 1) && PagerSettings.Visible;
|
|
|
|
ArrayList list = new ArrayList ();
|
|
|
|
// Creates the set of fields to show
|
|
|
|
_dataEnumerator = null;
|
|
ICollection fieldCollection = CreateColumns (pagedDataSource, dataBinding);
|
|
int fieldCount = fieldCollection.Count;
|
|
DataControlField dcf;
|
|
DataControlField[] fields = new DataControlField [fieldCount];
|
|
fieldCollection.CopyTo (fields, 0);
|
|
|
|
for (int i = 0; i < fieldCount; i++) {
|
|
dcf = fields [i];
|
|
dcf.Initialize (AllowSorting, this);
|
|
if (EnableSortingAndPagingCallbacks)
|
|
dcf.ValidateSupportsCallback ();
|
|
}
|
|
|
|
bool skip_first = false;
|
|
IEnumerator enumerator;
|
|
if (_dataEnumerator != null) {
|
|
// replaced when creating bound columns
|
|
enumerator = _dataEnumerator;
|
|
skip_first = true;
|
|
} else
|
|
enumerator = pagedDataSource.GetEnumerator ();
|
|
|
|
// Main table creation
|
|
Table mainTable = ContainedTable;
|
|
List <DataKey> dataKeyList;
|
|
string[] dataKeyNames;
|
|
List <DataKey> dataKeySuffixList;
|
|
string[] clientIDRowSuffix;
|
|
if (dataBinding) {
|
|
dataKeyList = DataKeyList;
|
|
dataKeyNames = DataKeyNames;
|
|
dataKeySuffixList = DataKeySuffixList;
|
|
clientIDRowSuffix = ClientIDRowSuffix;
|
|
} else {
|
|
dataKeyList = null;
|
|
dataKeyNames = null;
|
|
dataKeySuffixList = null;
|
|
clientIDRowSuffix = null;
|
|
}
|
|
|
|
while (skip_first || enumerator.MoveNext ()) {
|
|
skip_first = false;
|
|
object obj = enumerator.Current;
|
|
|
|
if (list.Count == 0) {
|
|
if (createPager && (PagerSettings.Position == PagerPosition.Top || PagerSettings.Position == PagerPosition.TopAndBottom)) {
|
|
topPagerRow = CreatePagerRow (fieldCount, pagedDataSource);
|
|
OnRowCreated (new GridViewRowEventArgs (topPagerRow));
|
|
mainTable.Rows.Add (topPagerRow);
|
|
if (dataBinding) {
|
|
topPagerRow.DataBind ();
|
|
OnRowDataBound (new GridViewRowEventArgs (topPagerRow));
|
|
}
|
|
if (PageCount == 1)
|
|
topPagerRow.Visible = false;
|
|
}
|
|
|
|
if (ShowHeader)
|
|
CreateHeaderRow (mainTable, fields, dataBinding);
|
|
}
|
|
|
|
DataControlRowState rstate = GetRowState (list.Count);
|
|
GridViewRow row = CreateRow (list.Count, list.Count, DataControlRowType.DataRow, rstate);
|
|
row.DataItem = obj;
|
|
list.Add (row);
|
|
InitializeRow (row, fields);
|
|
OnRowCreated (new GridViewRowEventArgs (row));
|
|
mainTable.Rows.Add (row);
|
|
if (dataBinding) {
|
|
row.DataBind ();
|
|
if (EditIndex == row.RowIndex)
|
|
oldEditValues = new DataKey (GetRowValues (row, true, true));
|
|
dataKeyList.Add (new DataKey (CreateRowDataKey (row), dataKeyNames));
|
|
dataKeySuffixList.Add (new DataKey (CreateRowSuffixDataKey (row), clientIDRowSuffix));
|
|
OnRowDataBound (new GridViewRowEventArgs (row));
|
|
}
|
|
}
|
|
|
|
if (list.Count == 0) {
|
|
if (ShowHeader && ShowHeaderWhenEmpty)
|
|
CreateHeaderRow (mainTable, fields, dataBinding);
|
|
GridViewRow emptyRow = CreateEmptyrRow (fieldCount);
|
|
if (emptyRow != null) {
|
|
OnRowCreated (new GridViewRowEventArgs (emptyRow));
|
|
mainTable.Rows.Add (emptyRow);
|
|
if (dataBinding) {
|
|
emptyRow.DataBind ();
|
|
OnRowDataBound (new GridViewRowEventArgs (emptyRow));
|
|
}
|
|
}
|
|
if (mainTable.Rows.Count == 0)
|
|
table = null;
|
|
return 0;
|
|
} else {
|
|
GridViewRow footerRow = CreateRow (-1, -1, DataControlRowType.Footer, DataControlRowState.Normal);
|
|
InitializeRow (footerRow, fields);
|
|
OnRowCreated (new GridViewRowEventArgs (footerRow));
|
|
mainTable.Rows.Add (footerRow);
|
|
if (dataBinding) {
|
|
footerRow.DataBind ();
|
|
OnRowDataBound (new GridViewRowEventArgs (footerRow));
|
|
}
|
|
|
|
if (createPager && (PagerSettings.Position == PagerPosition.Bottom || PagerSettings.Position == PagerPosition.TopAndBottom)) {
|
|
bottomPagerRow = CreatePagerRow (fieldCount, pagedDataSource);
|
|
OnRowCreated (new GridViewRowEventArgs (bottomPagerRow));
|
|
mainTable.Rows.Add (bottomPagerRow);
|
|
if (dataBinding) {
|
|
bottomPagerRow.DataBind ();
|
|
OnRowDataBound (new GridViewRowEventArgs (bottomPagerRow));
|
|
}
|
|
if (PageCount == 1)
|
|
bottomPagerRow.Visible = false;
|
|
}
|
|
}
|
|
|
|
rows = new GridViewRowCollection (list);
|
|
|
|
if (!dataBinding)
|
|
return -1;
|
|
|
|
if (AllowPaging)
|
|
return pagedDataSource.DataSourceCount;
|
|
else
|
|
return list.Count;
|
|
}
|
|
|
|
Table ContainedTable {
|
|
get {
|
|
if (table == null) {
|
|
table = CreateChildTable ();
|
|
Controls.Add (table);
|
|
}
|
|
|
|
return table;
|
|
}
|
|
}
|
|
|
|
protected override Style CreateControlStyle ()
|
|
{
|
|
TableStyle style = new TableStyle (ViewState);
|
|
style.GridLines = GridLines.Both;
|
|
style.CellSpacing = 0;
|
|
return style;
|
|
}
|
|
|
|
DataControlRowState GetRowState (int index)
|
|
{
|
|
DataControlRowState rstate = (index % 2) == 0 ? DataControlRowState.Normal : DataControlRowState.Alternate;
|
|
if (index == SelectedIndex)
|
|
rstate |= DataControlRowState.Selected;
|
|
if (index == EditIndex)
|
|
rstate |= DataControlRowState.Edit;
|
|
return rstate;
|
|
}
|
|
|
|
GridViewRow CreatePagerRow (int fieldCount, PagedDataSource dataSource)
|
|
{
|
|
GridViewRow row = CreateRow (-1, -1, DataControlRowType.Pager, DataControlRowState.Normal);
|
|
InitializePager (row, fieldCount, dataSource);
|
|
return row;
|
|
}
|
|
|
|
protected virtual void InitializePager (GridViewRow row, int columnSpan, PagedDataSource pagedDataSource)
|
|
{
|
|
TableCell cell = new TableCell ();
|
|
if (columnSpan > 1)
|
|
cell.ColumnSpan = columnSpan;
|
|
|
|
if (pagerTemplate != null)
|
|
pagerTemplate.InstantiateIn (cell);
|
|
else
|
|
cell.Controls.Add (PagerSettings.CreatePagerControl (pagedDataSource.CurrentPageIndex, pagedDataSource.PageCount));
|
|
|
|
row.Cells.Add (cell);
|
|
}
|
|
|
|
GridViewRow CreateEmptyrRow (int fieldCount)
|
|
{
|
|
if (emptyDataTemplate == null && String.IsNullOrEmpty (EmptyDataText))
|
|
return null;
|
|
|
|
GridViewRow row = CreateRow (-1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
|
|
TableCell cell = new TableCell ();
|
|
cell.ColumnSpan = fieldCount;
|
|
|
|
if (emptyDataTemplate != null)
|
|
emptyDataTemplate.InstantiateIn (cell);
|
|
else
|
|
cell.Text = EmptyDataText;
|
|
|
|
row.Cells.Add (cell);
|
|
return row;
|
|
}
|
|
|
|
protected virtual void InitializeRow (GridViewRow row, DataControlField[] fields)
|
|
{
|
|
DataControlCellType ctype;
|
|
bool accessibleHeader = false;
|
|
|
|
switch (row.RowType) {
|
|
case DataControlRowType.Header:
|
|
ctype = DataControlCellType.Header;
|
|
accessibleHeader = UseAccessibleHeader;
|
|
break;
|
|
case DataControlRowType.Footer:
|
|
ctype = DataControlCellType.Footer;
|
|
break;
|
|
default:
|
|
ctype = DataControlCellType.DataCell;
|
|
break;
|
|
}
|
|
|
|
for (int n=0; n<fields.Length; n++) {
|
|
DataControlField field = fields [n];
|
|
DataControlFieldCell cell;
|
|
|
|
if (((field is BoundField) && ((BoundField)field).DataField == RowHeaderColumn) || accessibleHeader)
|
|
cell = new DataControlFieldHeaderCell (field, accessibleHeader ? TableHeaderScope.Column : TableHeaderScope.Row);
|
|
else
|
|
cell = new DataControlFieldCell (field);
|
|
row.Cells.Add (cell);
|
|
field.InitializeCell (cell, ctype, row.RowState, row.RowIndex);
|
|
}
|
|
}
|
|
|
|
void LoadAndCacheProperties (string[] names, object dataItem, ref PropertyDescriptor[] cache)
|
|
{
|
|
if (cache != null)
|
|
return;
|
|
|
|
PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
|
|
int len = names != null ? names.Length : 0;
|
|
cache = new PropertyDescriptor [len];
|
|
for (int n = 0; n < len; n++) {
|
|
string propName = names [n];
|
|
PropertyDescriptor p = props.Find (propName, true);
|
|
if (p == null)
|
|
throw new InvalidOperationException ("Property '" + propName + "' not found in object of type " + dataItem.GetType ());
|
|
cache [n] = p;
|
|
}
|
|
}
|
|
|
|
IOrderedDictionary CreateDictionaryFromProperties (PropertyDescriptor[] cache, object dataItem)
|
|
{
|
|
OrderedDictionary dic = new OrderedDictionary ();
|
|
foreach (PropertyDescriptor p in cache)
|
|
dic [p.Name] = p.GetValue (dataItem);
|
|
return dic;
|
|
}
|
|
|
|
IOrderedDictionary CreateRowDataKey (GridViewRow row)
|
|
{
|
|
object dataItem = row.DataItem;
|
|
LoadAndCacheProperties (DataKeyNames, dataItem, ref cachedKeyProperties);
|
|
return CreateDictionaryFromProperties (cachedKeyProperties, dataItem);
|
|
}
|
|
IOrderedDictionary CreateRowSuffixDataKey (GridViewRow row)
|
|
{
|
|
object dataItem = row.DataItem;
|
|
LoadAndCacheProperties (ClientIDRowSuffix, dataItem, ref cachedSuffixKeyProperties);
|
|
return CreateDictionaryFromProperties (cachedSuffixKeyProperties, dataItem);
|
|
}
|
|
IOrderedDictionary GetRowValues (GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
|
|
{
|
|
OrderedDictionary dic = new OrderedDictionary ();
|
|
ExtractRowValues (dic, row, includeReadOnlyFields, includePrimaryKey);
|
|
return dic;
|
|
}
|
|
|
|
protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, GridViewRow row, bool includeReadOnlyFields, bool includePrimaryKey)
|
|
{
|
|
DataControlField field;
|
|
foreach (TableCell cell in row.Cells) {
|
|
DataControlFieldCell c = cell as DataControlFieldCell;
|
|
if (c == null)
|
|
continue;
|
|
|
|
field = c.ContainingField;
|
|
if (field != null && !field.Visible)
|
|
continue;
|
|
|
|
c.ContainingField.ExtractValuesFromCell (fieldValues, c, row.RowState, includeReadOnlyFields);
|
|
}
|
|
if (!includePrimaryKey && DataKeyNames != null)
|
|
foreach (string key in DataKeyNames)
|
|
fieldValues.Remove (key);
|
|
}
|
|
|
|
protected override HtmlTextWriterTag TagKey {
|
|
get {
|
|
if (EnableSortingAndPagingCallbacks)
|
|
return HtmlTextWriterTag.Div;
|
|
else
|
|
return HtmlTextWriterTag.Table;
|
|
}
|
|
}
|
|
|
|
public sealed override void DataBind ()
|
|
{
|
|
DataKeyList.Clear ();
|
|
cachedKeyProperties = null;
|
|
base.DataBind ();
|
|
|
|
keys = new DataKeyArray (DataKeyList);
|
|
|
|
GridViewRow row = HeaderRow;
|
|
if (row != null)
|
|
row.Visible = ShowHeader;
|
|
|
|
row = FooterRow;
|
|
if (row != null)
|
|
row.Visible = ShowFooter;
|
|
}
|
|
|
|
protected internal override void PerformDataBinding (IEnumerable data)
|
|
{
|
|
base.PerformDataBinding (data);
|
|
}
|
|
|
|
protected internal virtual void PrepareControlHierarchy ()
|
|
{
|
|
if (table == null)
|
|
return;
|
|
|
|
table.Caption = Caption;
|
|
table.CaptionAlign = CaptionAlign;
|
|
table.CopyBaseAttributes (this);
|
|
|
|
foreach (GridViewRow row in table.Rows) {
|
|
switch (row.RowType) {
|
|
case DataControlRowType.Header:
|
|
if (headerStyle != null && !headerStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith(headerStyle);
|
|
row.Visible = ShowHeader;
|
|
break;
|
|
case DataControlRowType.Footer:
|
|
if (footerStyle != null && !footerStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (footerStyle);
|
|
row.Visible = ShowFooter;
|
|
break;
|
|
case DataControlRowType.Pager:
|
|
if (pagerStyle != null && !pagerStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (pagerStyle);
|
|
break;
|
|
case DataControlRowType.EmptyDataRow:
|
|
if (emptyDataRowStyle != null && !emptyDataRowStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (emptyDataRowStyle);
|
|
break;
|
|
case DataControlRowType.DataRow:
|
|
if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null && !editRowStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (editRowStyle);
|
|
if ((row.RowState & DataControlRowState.Selected) != 0 && selectedRowStyle != null && !selectedRowStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (selectedRowStyle);
|
|
if ((row.RowState & DataControlRowState.Alternate) != 0 && alternatingRowStyle != null && !alternatingRowStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (alternatingRowStyle);
|
|
if (rowStyle != null && !rowStyle.IsEmpty)
|
|
row.ControlStyle.MergeWith (rowStyle);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
string sortExpression = SortExpression;
|
|
bool haveSorting = !String.IsNullOrEmpty (sortExpression);
|
|
foreach (TableCell cell in row.Cells) {
|
|
DataControlFieldCell fcell = cell as DataControlFieldCell;
|
|
if (fcell != null) {
|
|
DataControlField field = fcell.ContainingField;
|
|
if (field == null)
|
|
continue;
|
|
if (!field.Visible) {
|
|
cell.Visible = false;
|
|
continue;
|
|
}
|
|
|
|
switch (row.RowType) {
|
|
case DataControlRowType.Header:
|
|
if (field.HeaderStyleCreated && !field.HeaderStyle.IsEmpty)
|
|
cell.ControlStyle.MergeWith (field.HeaderStyle);
|
|
if (haveSorting)
|
|
MergeWithSortingStyle (sortExpression, sortedAscendingHeaderStyle, sortedDescendingHeaderStyle, field, cell);
|
|
break;
|
|
case DataControlRowType.Footer:
|
|
if (field.FooterStyleCreated && !field.FooterStyle.IsEmpty)
|
|
cell.ControlStyle.MergeWith (field.FooterStyle);
|
|
break;
|
|
default:
|
|
if (field.ControlStyleCreated && !field.ControlStyle.IsEmpty) {
|
|
foreach (Control c in cell.Controls) {
|
|
WebControl wc = c as WebControl;
|
|
if (wc != null)
|
|
wc.ControlStyle.MergeWith (field.ControlStyle);
|
|
}
|
|
}
|
|
if (field.ItemStyleCreated && !field.ItemStyle.IsEmpty)
|
|
cell.ControlStyle.MergeWith (field.ItemStyle);
|
|
if (haveSorting)
|
|
MergeWithSortingStyle (sortExpression, sortedAscendingCellStyle, sortedDescendingCellStyle, field, cell);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
void MergeWithSortingStyle (string sortExpression, TableItemStyle ascending, TableItemStyle descending, DataControlField field, TableCell cell)
|
|
{
|
|
if (String.Compare (field.SortExpression, sortExpression, StringComparison.OrdinalIgnoreCase) != 0)
|
|
return;
|
|
|
|
cell.ControlStyle.MergeWith (SortDirection == SortDirection.Ascending ? ascending : descending);
|
|
}
|
|
protected internal override void OnInit (EventArgs e)
|
|
{
|
|
Page page = Page;
|
|
if (page != null)
|
|
page.RegisterRequiresControlState (this);
|
|
base.OnInit (e);
|
|
}
|
|
|
|
void OnFieldsChanged (object sender, EventArgs args)
|
|
{
|
|
RequireBinding ();
|
|
}
|
|
|
|
protected override void OnDataPropertyChanged ()
|
|
{
|
|
base.OnDataPropertyChanged ();
|
|
RequireBinding ();
|
|
}
|
|
|
|
protected override void OnDataSourceViewChanged (object sender, EventArgs e)
|
|
{
|
|
base.OnDataSourceViewChanged (sender, e);
|
|
RequireBinding ();
|
|
}
|
|
|
|
protected override bool OnBubbleEvent (object source, EventArgs e)
|
|
{
|
|
GridViewCommandEventArgs args = e as GridViewCommandEventArgs;
|
|
if (args != null) {
|
|
bool causesValidation = false;
|
|
IButtonControl button = args.CommandSource as IButtonControl;
|
|
if (button != null && button.CausesValidation) {
|
|
Page.Validate (button.ValidationGroup);
|
|
causesValidation = true;
|
|
}
|
|
OnRowCommand (args);
|
|
string param = args.CommandArgument as string;
|
|
if (param == null || param.Length == 0) {
|
|
GridViewRow row = args.Row;
|
|
if (row != null)
|
|
param = row.RowIndex.ToString();
|
|
}
|
|
ProcessEvent (args.CommandName, param, causesValidation);
|
|
return true;
|
|
}
|
|
return base.OnBubbleEvent (source, e);
|
|
}
|
|
|
|
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
|
|
{
|
|
ValidateEvent (UniqueID, eventArgument);
|
|
RaisePostBackEvent (eventArgument);
|
|
}
|
|
|
|
// This is prolly obsolete
|
|
protected virtual void RaisePostBackEvent (string eventArgument)
|
|
{
|
|
GridViewCommandEventArgs args;
|
|
int i = eventArgument.IndexOf ('$');
|
|
if (i != -1)
|
|
args = new GridViewCommandEventArgs (this, new CommandEventArgs (eventArgument.Substring (0, i), eventArgument.Substring (i + 1)));
|
|
else
|
|
args = new GridViewCommandEventArgs (this, new CommandEventArgs (eventArgument, null));
|
|
|
|
OnRowCommand (args);
|
|
ProcessEvent (args.CommandName, (string) args.CommandArgument, false);
|
|
}
|
|
|
|
void ProcessEvent (string eventName, string param, bool causesValidation)
|
|
{
|
|
switch (eventName) {
|
|
case DataControlCommands.PageCommandName:
|
|
int newIndex = -1;
|
|
switch (param) {
|
|
case DataControlCommands.FirstPageCommandArgument:
|
|
newIndex = 0;
|
|
break;
|
|
case DataControlCommands.LastPageCommandArgument:
|
|
newIndex = PageCount - 1;
|
|
break;
|
|
case DataControlCommands.NextPageCommandArgument:
|
|
newIndex = PageIndex + 1;
|
|
break;
|
|
case DataControlCommands.PreviousPageCommandArgument:
|
|
newIndex = PageIndex - 1;
|
|
break;
|
|
default:
|
|
int paramIndex = 0;
|
|
int.TryParse (param, out paramIndex);
|
|
newIndex = paramIndex - 1;
|
|
break;
|
|
}
|
|
SetPageIndex (newIndex);
|
|
break;
|
|
|
|
case DataControlCommands.FirstPageCommandArgument:
|
|
SetPageIndex (0);
|
|
break;
|
|
|
|
case DataControlCommands.LastPageCommandArgument:
|
|
SetPageIndex (PageCount - 1);
|
|
break;
|
|
|
|
case DataControlCommands.NextPageCommandArgument:
|
|
if (PageIndex < PageCount - 1)
|
|
SetPageIndex (PageIndex + 1);
|
|
break;
|
|
|
|
case DataControlCommands.PreviousPageCommandArgument:
|
|
if (PageIndex > 0)
|
|
SetPageIndex (PageIndex - 1);
|
|
break;
|
|
|
|
case DataControlCommands.SelectCommandName:
|
|
SelectRow (int.Parse (param));
|
|
break;
|
|
|
|
case DataControlCommands.EditCommandName:
|
|
SetEditRow (int.Parse (param));
|
|
break;
|
|
|
|
case DataControlCommands.UpdateCommandName:
|
|
int editIndex = int.Parse (param);
|
|
UpdateRow (Rows [editIndex], editIndex, causesValidation);
|
|
break;
|
|
|
|
case DataControlCommands.CancelCommandName:
|
|
CancelEdit ();
|
|
break;
|
|
|
|
case DataControlCommands.DeleteCommandName:
|
|
DeleteRow (int.Parse (param));
|
|
break;
|
|
|
|
case DataControlCommands.SortCommandName:
|
|
Sort (param);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Sort (string newSortExpression)
|
|
{
|
|
SortDirection newDirection = SortDirection.Ascending;
|
|
if (sortExpression == newSortExpression && sortDirection == SortDirection.Ascending)
|
|
newDirection = SortDirection.Descending;
|
|
|
|
Sort (newSortExpression, newDirection);
|
|
}
|
|
|
|
public virtual void Sort (string sortExpression, SortDirection sortDirection)
|
|
{
|
|
GridViewSortEventArgs args = new GridViewSortEventArgs (sortExpression, sortDirection);
|
|
OnSorting (args);
|
|
if (args.Cancel)
|
|
return;
|
|
|
|
if (IsBoundUsingDataSourceID) {
|
|
EditIndex = -1;
|
|
PageIndex = 0;
|
|
SortExpression = args.SortExpression;
|
|
SortDirection = args.SortDirection;
|
|
}
|
|
|
|
OnSorted (EventArgs.Empty);
|
|
}
|
|
public
|
|
void SelectRow (int rowIndex)
|
|
{
|
|
GridViewSelectEventArgs args = new GridViewSelectEventArgs (rowIndex);
|
|
OnSelectedIndexChanging (args);
|
|
if (!args.Cancel) {
|
|
RequireBinding ();
|
|
SelectedIndex = args.NewSelectedIndex;
|
|
OnSelectedIndexChanged (EventArgs.Empty);
|
|
}
|
|
}
|
|
public
|
|
void SetPageIndex (int rowIndex)
|
|
{
|
|
GridViewPageEventArgs args = new GridViewPageEventArgs (rowIndex);
|
|
OnPageIndexChanging (args);
|
|
|
|
if (args.Cancel || !IsBoundUsingDataSourceID)
|
|
return;
|
|
|
|
EndRowEdit ();
|
|
PageIndex = args.NewPageIndex;
|
|
OnPageIndexChanged (EventArgs.Empty);
|
|
}
|
|
public
|
|
void SetEditRow (int rowIndex)
|
|
{
|
|
GridViewEditEventArgs args = new GridViewEditEventArgs (rowIndex);
|
|
OnRowEditing (args);
|
|
|
|
if (args.Cancel || !IsBoundUsingDataSourceID)
|
|
return;
|
|
|
|
EditIndex = args.NewEditIndex;
|
|
}
|
|
|
|
void CancelEdit ()
|
|
{
|
|
GridViewCancelEditEventArgs args = new GridViewCancelEditEventArgs (EditIndex);
|
|
OnRowCancelingEdit (args);
|
|
|
|
if (args.Cancel || !IsBoundUsingDataSourceID)
|
|
return;
|
|
|
|
EndRowEdit ();
|
|
}
|
|
|
|
[MonoTODO ("Support two-way binding expressions")]
|
|
public virtual void UpdateRow (int rowIndex, bool causesValidation)
|
|
{
|
|
if (rowIndex != EditIndex)
|
|
throw new NotSupportedException ();
|
|
|
|
GridViewRow row = Rows [rowIndex];
|
|
UpdateRow (row, rowIndex, causesValidation);
|
|
}
|
|
|
|
void UpdateRow (GridViewRow row, int rowIndex, bool causesValidation)
|
|
{
|
|
if (causesValidation && Page != null && !Page.IsValid)
|
|
return;
|
|
|
|
currentEditOldValues = CopyOrderedDictionary (OldEditValues.Values);
|
|
currentEditRowKeys = CopyOrderedDictionary (DataKeys [rowIndex].Values);
|
|
currentEditNewValues = GetRowValues (row, false, false);
|
|
|
|
GridViewUpdateEventArgs args = new GridViewUpdateEventArgs (rowIndex, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
|
|
OnRowUpdating (args);
|
|
|
|
if (args.Cancel || !IsBoundUsingDataSourceID)
|
|
return;
|
|
|
|
DataSourceView view = GetData ();
|
|
if (view == null)
|
|
throw new HttpException ("The DataSourceView associated to data bound control was null");
|
|
view.Update (currentEditRowKeys, currentEditNewValues, currentEditOldValues, new DataSourceViewOperationCallback (UpdateCallback));
|
|
}
|
|
|
|
static IOrderedDictionary CopyOrderedDictionary (IOrderedDictionary sourceDic)
|
|
{
|
|
OrderedDictionary copyDic = new OrderedDictionary ();
|
|
foreach (object key in sourceDic.Keys)
|
|
copyDic.Add (key, sourceDic [key]);
|
|
return copyDic;
|
|
}
|
|
|
|
bool UpdateCallback (int recordsAffected, Exception exception)
|
|
{
|
|
GridViewUpdatedEventArgs dargs = new GridViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
|
|
OnRowUpdated (dargs);
|
|
|
|
if (!dargs.KeepInEditMode)
|
|
EndRowEdit ();
|
|
|
|
return dargs.ExceptionHandled;
|
|
}
|
|
|
|
public virtual void DeleteRow (int rowIndex)
|
|
{
|
|
GridViewRow row = Rows [rowIndex];
|
|
currentEditRowKeys = CopyOrderedDictionary (DataKeys [rowIndex].Values);
|
|
currentEditNewValues = GetRowValues (row, true, true);
|
|
|
|
GridViewDeleteEventArgs args = new GridViewDeleteEventArgs (rowIndex, currentEditRowKeys, currentEditNewValues);
|
|
OnRowDeleting (args);
|
|
|
|
if (args.Cancel || !IsBoundUsingDataSourceID)
|
|
return;
|
|
|
|
RequireBinding ();
|
|
DataSourceView view = GetData ();
|
|
if (view != null)
|
|
view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
|
|
else {
|
|
GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
|
|
OnRowDeleted (dargs);
|
|
}
|
|
}
|
|
|
|
bool DeleteCallback (int recordsAffected, Exception exception)
|
|
{
|
|
GridViewDeletedEventArgs dargs = new GridViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
|
|
OnRowDeleted (dargs);
|
|
return dargs.ExceptionHandled;
|
|
}
|
|
|
|
void EndRowEdit ()
|
|
{
|
|
EditIndex = -1;
|
|
oldEditValues = new DataKey (new OrderedDictionary ());
|
|
currentEditRowKeys = null;
|
|
currentEditOldValues = null;
|
|
currentEditNewValues = null;
|
|
}
|
|
|
|
protected internal override void LoadControlState (object savedState)
|
|
{
|
|
if (savedState == null)
|
|
return;
|
|
object[] state = (object[]) savedState;
|
|
base.LoadControlState (state[0]);
|
|
pageIndex = (int) state[1];
|
|
selectedIndex = (int) state[2];
|
|
editIndex = (int) state[3];
|
|
sortExpression = (string) state[4];
|
|
sortDirection = (SortDirection) state[5];
|
|
DataKeyNames = (string []) state [6];
|
|
if (state [7] != null)
|
|
LoadDataKeyArrayState ((object []) state [7], out keys);
|
|
if (state [8] != null)
|
|
((IStateManager) OldEditValues).LoadViewState (state [8]);
|
|
pageCount = (int)state [9];
|
|
if (state [10] != null)
|
|
ClientIDRowSuffix = (string[]) state [10];
|
|
if (state [11] != null)
|
|
LoadDataKeyArrayState ((object []) state [11], out rowSuffixKeys);
|
|
}
|
|
|
|
protected internal override object SaveControlState ()
|
|
{
|
|
if (EnableSortingAndPagingCallbacks) {
|
|
Page page = Page;
|
|
ClientScriptManager scriptManager = page != null ? page.ClientScript : null;
|
|
|
|
if (scriptManager != null) {
|
|
scriptManager.RegisterHiddenField (ClientID + "_Page", PageIndex.ToString ());
|
|
scriptManager.RegisterHiddenField (ClientID + "_SortExpression", SortExpression);
|
|
scriptManager.RegisterHiddenField (ClientID + "_SortDirection", ((int)SortDirection).ToString());
|
|
}
|
|
}
|
|
|
|
object bstate = base.SaveControlState ();
|
|
return new object [] {
|
|
bstate,
|
|
pageIndex,
|
|
selectedIndex,
|
|
editIndex,
|
|
sortExpression,
|
|
sortDirection,
|
|
DataKeyNames,
|
|
SaveDataKeyArrayState (keys),
|
|
(oldEditValues == null ? null : ((IStateManager)oldEditValues).SaveViewState ()),
|
|
pageCount,
|
|
ClientIDRowSuffix,
|
|
SaveDataKeyArrayState (rowSuffixKeys)
|
|
};
|
|
}
|
|
|
|
object [] SaveDataKeyArrayState (DataKeyArray keys)
|
|
{
|
|
if (keys == null)
|
|
return null;
|
|
|
|
object [] state = new object [keys.Count];
|
|
for (int i = 0; i < keys.Count; i++)
|
|
state [i] = ((IStateManager) keys [i]).SaveViewState ();
|
|
return state;
|
|
}
|
|
|
|
void LoadDataKeyArrayState (object [] state, out DataKeyArray keys)
|
|
{
|
|
List <DataKey> dataKeyList = DataKeyList;
|
|
string[] dataKeyNames = DataKeyNames;
|
|
int dataKeyNamesLen = dataKeyNames.Length;
|
|
|
|
for (int i = 0; i < state.Length; i++) {
|
|
DataKey dataKey = new DataKey (new OrderedDictionary (dataKeyNamesLen), dataKeyNames);
|
|
((IStateManager) dataKey).LoadViewState (state [i]);
|
|
dataKeyList.Add (dataKey);
|
|
}
|
|
keys = new DataKeyArray (dataKeyList);
|
|
}
|
|
|
|
protected override void TrackViewState ()
|
|
{
|
|
base.TrackViewState();
|
|
if (columns != null)
|
|
((IStateManager)columns).TrackViewState();
|
|
if (pagerSettings != null)
|
|
((IStateManager)pagerSettings).TrackViewState();
|
|
if (alternatingRowStyle != null)
|
|
((IStateManager)alternatingRowStyle).TrackViewState();
|
|
if (footerStyle != null)
|
|
((IStateManager)footerStyle).TrackViewState();
|
|
if (headerStyle != null)
|
|
((IStateManager)headerStyle).TrackViewState();
|
|
if (pagerStyle != null)
|
|
((IStateManager)pagerStyle).TrackViewState();
|
|
if (rowStyle != null)
|
|
((IStateManager)rowStyle).TrackViewState();
|
|
if (selectedRowStyle != null)
|
|
((IStateManager)selectedRowStyle).TrackViewState();
|
|
if (editRowStyle != null)
|
|
((IStateManager)editRowStyle).TrackViewState();
|
|
if (emptyDataRowStyle != null)
|
|
((IStateManager)emptyDataRowStyle).TrackViewState();
|
|
if (sortedAscendingCellStyle != null)
|
|
((IStateManager)sortedAscendingCellStyle).TrackViewState ();
|
|
|
|
if (sortedAscendingHeaderStyle != null)
|
|
((IStateManager)sortedAscendingHeaderStyle).TrackViewState ();
|
|
|
|
if (sortedDescendingCellStyle != null)
|
|
((IStateManager)sortedDescendingCellStyle).TrackViewState ();
|
|
|
|
if (sortedDescendingHeaderStyle != null)
|
|
((IStateManager)sortedDescendingHeaderStyle).TrackViewState ();
|
|
if (rowSuffixKeys != null)
|
|
((IStateManager) rowSuffixKeys).TrackViewState ();
|
|
if (keys != null)
|
|
((IStateManager)keys).TrackViewState();
|
|
if (autoFieldProperties != null) {
|
|
foreach (IStateManager sm in autoFieldProperties)
|
|
sm.TrackViewState ();
|
|
}
|
|
}
|
|
|
|
protected override object SaveViewState ()
|
|
{
|
|
object[] autoFieldsData = null;
|
|
|
|
if (autoFieldProperties != null) {
|
|
object[] data = new object [autoFieldProperties.Length];
|
|
bool allNull = true;
|
|
for (int n = 0; n < data.Length; n++) {
|
|
data [n] = ((IStateManager)autoFieldProperties [n]).SaveViewState ();
|
|
if (data [n] != null)
|
|
allNull = false;
|
|
}
|
|
if (!allNull)
|
|
autoFieldsData = data;
|
|
}
|
|
|
|
object[] states = {
|
|
base.SaveViewState(), // 0
|
|
(columns == null ? null : ((IStateManager)columns).SaveViewState()), // 1
|
|
(pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState()), // 2
|
|
(alternatingRowStyle == null ? null : ((IStateManager)alternatingRowStyle).SaveViewState()), // 3
|
|
(footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState()), // 4
|
|
(headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState()), // 5
|
|
(pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState()), // 6
|
|
(rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState()), // 7
|
|
(selectedRowStyle == null ? null : ((IStateManager)selectedRowStyle).SaveViewState()), // 8
|
|
(editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState()), // 9
|
|
(emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState()), // 10
|
|
autoFieldsData, // 11
|
|
sortedAscendingCellStyle == null ? null : ((IStateManager)sortedAscendingCellStyle).SaveViewState (), // 12
|
|
sortedAscendingHeaderStyle == null ? null : ((IStateManager)sortedAscendingHeaderStyle).SaveViewState (), // 13
|
|
sortedDescendingCellStyle == null ? null : ((IStateManager)sortedDescendingCellStyle).SaveViewState (), // 14
|
|
sortedDescendingHeaderStyle == null ? null : ((IStateManager)sortedDescendingHeaderStyle).SaveViewState () // 15
|
|
};
|
|
|
|
for (int i = states.Length - 1; i >= 0; i--) {
|
|
if (states [i] != null)
|
|
return states;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected override void LoadViewState (object savedState)
|
|
{
|
|
if (savedState == null) {
|
|
base.LoadViewState (null);
|
|
return;
|
|
}
|
|
|
|
object [] states = (object []) savedState;
|
|
|
|
if (states[11] != null) {
|
|
object[] data = (object[]) states [11];
|
|
autoFieldProperties = new AutoGeneratedFieldProperties [data.Length];
|
|
for (int n=0; n<data.Length; n++) {
|
|
IStateManager p = new AutoGeneratedFieldProperties ();
|
|
p.TrackViewState ();
|
|
p.LoadViewState (data [n]);
|
|
autoFieldProperties [n] = (AutoGeneratedFieldProperties) p;
|
|
}
|
|
}
|
|
|
|
base.LoadViewState (states[0]);
|
|
|
|
if (states[1] != null)
|
|
((IStateManager)Columns).LoadViewState (states[1]);
|
|
if (states[2] != null)
|
|
((IStateManager)PagerSettings).LoadViewState (states[2]);
|
|
if (states[3] != null)
|
|
((IStateManager)AlternatingRowStyle).LoadViewState (states[3]);
|
|
if (states[4] != null)
|
|
((IStateManager)FooterStyle).LoadViewState (states[4]);
|
|
if (states[5] != null)
|
|
((IStateManager)HeaderStyle).LoadViewState (states[5]);
|
|
if (states[6] != null)
|
|
((IStateManager)PagerStyle).LoadViewState (states[6]);
|
|
if (states[7] != null)
|
|
((IStateManager)RowStyle).LoadViewState (states[7]);
|
|
if (states[8] != null)
|
|
((IStateManager)SelectedRowStyle).LoadViewState (states[8]);
|
|
if (states[9] != null)
|
|
((IStateManager)EditRowStyle).LoadViewState (states[9]);
|
|
if (states[10] != null)
|
|
((IStateManager)EmptyDataRowStyle).LoadViewState (states[10]);
|
|
if (states [12] != null)
|
|
((IStateManager)sortedAscendingCellStyle).LoadViewState (states [12]);
|
|
if (states [13] != null)
|
|
((IStateManager)sortedAscendingHeaderStyle).LoadViewState (states [13]);
|
|
if (states [14] != null)
|
|
((IStateManager)sortedDescendingCellStyle).LoadViewState (states [14]);
|
|
if (states [15] != null)
|
|
((IStateManager)sortedDescendingHeaderStyle).LoadViewState (states [15]);
|
|
}
|
|
|
|
void ICallbackEventHandler.RaiseCallbackEvent (string eventArgument)
|
|
{
|
|
RaiseCallbackEvent (eventArgument);
|
|
}
|
|
|
|
protected virtual void RaiseCallbackEvent (string eventArgument)
|
|
{
|
|
string[] clientData = eventArgument.Split ('|');
|
|
PageIndex = int.Parse (clientData[0]);
|
|
SortExpression = HttpUtility.UrlDecode (clientData [1]);
|
|
SortDirection = (SortDirection) int.Parse (clientData [2]);
|
|
|
|
RaisePostBackEvent (clientData[3]);
|
|
DataBind ();
|
|
}
|
|
|
|
string ICallbackEventHandler.GetCallbackResult ()
|
|
{
|
|
return GetCallbackResult ();
|
|
}
|
|
|
|
protected virtual string GetCallbackResult ()
|
|
{
|
|
PrepareControlHierarchy ();
|
|
|
|
StringWriter sw = new StringWriter ();
|
|
sw.Write (PageIndex.ToString () + '|' + SortExpression + '|' + (int) SortDirection + '|');
|
|
|
|
HtmlTextWriter writer = new HtmlTextWriter (sw);
|
|
RenderGrid (writer);
|
|
return sw.ToString ();
|
|
}
|
|
|
|
string ICallbackContainer.GetCallbackScript (IButtonControl buttonControl, string argument)
|
|
{
|
|
return GetCallbackScript (buttonControl, argument);
|
|
}
|
|
|
|
protected virtual string GetCallbackScript (IButtonControl buttonControl, string argument)
|
|
{
|
|
if (EnableSortingAndPagingCallbacks) {
|
|
Page page = Page;
|
|
if (page != null)
|
|
page.ClientScript.RegisterForEventValidation (UniqueID, argument);
|
|
return "javascript:GridView_ClientEvent (\"" + ClientID + "\",\"" + buttonControl.CommandName + "$" + buttonControl.CommandArgument + "\"); return false;";
|
|
} else
|
|
return null;
|
|
}
|
|
|
|
protected override void OnPagePreLoad (object sender, EventArgs e)
|
|
{
|
|
base.OnPagePreLoad (sender, e);
|
|
Page page = Page;
|
|
|
|
if (page != null && page.IsPostBack && EnableSortingAndPagingCallbacks) {
|
|
HttpRequest req = page.Request;
|
|
int value;
|
|
if (req != null) {
|
|
if (int.TryParse (req.Form [ClientID + "_Page"], out value))
|
|
PageIndex = value;
|
|
|
|
if (int.TryParse (req.Form [ClientID + "_SortDirection"], out value))
|
|
SortDirection = (SortDirection) value;
|
|
SortExpression = req.Form [ClientID + "_SortExpression"];
|
|
}
|
|
}
|
|
}
|
|
|
|
const string onPreRenderScript = @"var {0} = new Object ();
|
|
{0}.pageIndex = {1};
|
|
{0}.sortExp = {2};
|
|
{0}.sortDir = {3};
|
|
{0}.uid = {4};
|
|
{0}.form = {5};
|
|
";
|
|
protected internal override void OnPreRender (EventArgs e)
|
|
{
|
|
base.OnPreRender (e);
|
|
|
|
if (EnableSortingAndPagingCallbacks) {
|
|
Page page = Page;
|
|
ClientScriptManager scriptManager = page != null ? page.ClientScript : null;
|
|
if (scriptManager != null) {
|
|
if (!scriptManager.IsClientScriptIncludeRegistered (typeof(GridView), "GridView.js")) {
|
|
string url = scriptManager.GetWebResourceUrl (typeof(GridView), "GridView.js");
|
|
scriptManager.RegisterClientScriptInclude (typeof(GridView), "GridView.js", url);
|
|
}
|
|
|
|
string cgrid = ClientID + "_data";
|
|
string script = String.Format (onPreRenderScript,
|
|
cgrid,
|
|
ClientScriptManager.GetScriptLiteral (PageIndex),
|
|
ClientScriptManager.GetScriptLiteral (SortExpression == null ? String.Empty : SortExpression),
|
|
ClientScriptManager.GetScriptLiteral ((int) SortDirection),
|
|
ClientScriptManager.GetScriptLiteral (UniqueID),
|
|
page.theForm);
|
|
|
|
scriptManager.RegisterStartupScript (typeof(TreeView), this.UniqueID, script, true);
|
|
|
|
// Make sure the basic script infrastructure is rendered
|
|
scriptManager.GetCallbackEventReference (this, "null", String.Empty, "null");
|
|
scriptManager.GetPostBackClientHyperlink (this, String.Empty);
|
|
}
|
|
}
|
|
}
|
|
|
|
protected internal override void Render (HtmlTextWriter writer)
|
|
{
|
|
PrepareControlHierarchy ();
|
|
if (EnableSortingAndPagingCallbacks)
|
|
writer.AddAttribute (HtmlTextWriterAttribute.Id, ClientID + "_div");
|
|
writer.RenderBeginTag (HtmlTextWriterTag.Div);
|
|
|
|
RenderGrid (writer);
|
|
|
|
writer.RenderEndTag ();
|
|
}
|
|
|
|
void RenderGrid (HtmlTextWriter writer)
|
|
{
|
|
if (table == null)
|
|
return;
|
|
|
|
table.Render (writer);
|
|
}
|
|
|
|
PostBackOptions IPostBackContainer.GetPostBackOptions (IButtonControl control)
|
|
{
|
|
if (control == null)
|
|
throw new ArgumentNullException ("control");
|
|
|
|
if (control.CausesValidation)
|
|
throw new InvalidOperationException ("A button that causes validation in GridView '" + ID + "' is attempting to use the container GridView as the post back target. The button should either turn off validation or use itself as the post back container.");
|
|
|
|
PostBackOptions options = new PostBackOptions (this);
|
|
options.Argument = control.CommandName + "$" + control.CommandArgument;
|
|
options.RequiresJavaScriptProtocol = true;
|
|
|
|
return options;
|
|
}
|
|
}
|
|
}
|