Jo Shields 3c1f479b9d Imported Upstream version 4.0.0~alpha1
Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9
2015-04-07 09:35:12 +01:00

2031 lines
60 KiB
C#

//
// System.Web.UI.WebControls.DetailsView.cs
//
// Authors:
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Web.UI;
using System.Security.Permissions;
using System.Text;
using System.IO;
using System.Reflection;
namespace System.Web.UI.WebControls
{
[SupportsEventValidation]
[ToolboxDataAttribute ("<{0}:DetailsView runat=\"server\" Width=\"125px\" Height=\"50px\"></{0}:DetailsView>")]
[DesignerAttribute ("System.Web.UI.Design.WebControls.DetailsViewDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
[ControlValuePropertyAttribute ("SelectedValue")]
[DefaultEventAttribute ("PageIndexChanging")]
[DataKeyProperty ("DataKey")]
[AspNetHostingPermissionAttribute (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class DetailsView: CompositeDataBoundControl, ICallbackEventHandler, ICallbackContainer, IDataItemContainer, INamingContainer, IPostBackEventHandler, IPostBackContainer
, IDataBoundItemControl, IDataBoundControl, IFieldControl
{
object dataItem;
Table table;
DetailsViewRowCollection rows;
DetailsViewRow headerRow;
DetailsViewRow footerRow;
DetailsViewRow bottomPagerRow;
DetailsViewRow topPagerRow;
IOrderedDictionary currentEditRowKeys;
IOrderedDictionary currentEditNewValues;
IOrderedDictionary currentEditOldValues;
ITemplate pagerTemplate;
ITemplate emptyDataTemplate;
ITemplate headerTemplate;
ITemplate footerTemplate;
PropertyDescriptor[] cachedKeyProperties;
readonly string[] emptyKeys = new string[0];
readonly string unhandledEventExceptionMessage = "The DetailsView '{0}' fired event {1} which wasn't handled.";
// View state
DataControlFieldCollection columns;
PagerSettings pagerSettings;
TableItemStyle alternatingRowStyle;
TableItemStyle editRowStyle;
TableItemStyle insertRowStyle;
TableItemStyle emptyDataRowStyle;
TableItemStyle footerStyle;
TableItemStyle headerStyle;
TableItemStyle pagerStyle;
TableItemStyle rowStyle;
TableItemStyle commandRowStyle;
TableItemStyle fieldHeaderStyle;
IOrderedDictionary _keyTable;
DataKey key;
DataKey oldEditValues;
AutoGeneratedFieldProperties[] autoFieldProperties;
static readonly object PageIndexChangedEvent = new object();
static readonly object PageIndexChangingEvent = new object();
static readonly object ItemCommandEvent = new object();
static readonly object ItemCreatedEvent = new object();
static readonly object ItemDeletedEvent = new object();
static readonly object ItemDeletingEvent = new object();
static readonly object ItemInsertedEvent = new object();
static readonly object ItemInsertingEvent = new object();
static readonly object ModeChangingEvent = new object();
static readonly object ModeChangedEvent = new object();
static readonly object ItemUpdatedEvent = new object();
static readonly object ItemUpdatingEvent = new object();
// Control state
int pageIndex;
DetailsViewMode currentMode = DetailsViewMode.ReadOnly;
bool hasCurrentMode;
int pageCount;
public DetailsView ()
{
rows = new DetailsViewRowCollection (new ArrayList ());
}
public event EventHandler PageIndexChanged {
add { Events.AddHandler (PageIndexChangedEvent, value); }
remove { Events.RemoveHandler (PageIndexChangedEvent, value); }
}
public event DetailsViewPageEventHandler PageIndexChanging {
add { Events.AddHandler (PageIndexChangingEvent, value); }
remove { Events.RemoveHandler (PageIndexChangingEvent, value); }
}
public event DetailsViewCommandEventHandler ItemCommand {
add { Events.AddHandler (ItemCommandEvent, value); }
remove { Events.RemoveHandler (ItemCommandEvent, value); }
}
public event EventHandler ItemCreated {
add { Events.AddHandler (ItemCreatedEvent, value); }
remove { Events.RemoveHandler (ItemCreatedEvent, value); }
}
public event DetailsViewDeletedEventHandler ItemDeleted {
add { Events.AddHandler (ItemDeletedEvent, value); }
remove { Events.RemoveHandler (ItemDeletedEvent, value); }
}
public event DetailsViewDeleteEventHandler ItemDeleting {
add { Events.AddHandler (ItemDeletingEvent, value); }
remove { Events.RemoveHandler (ItemDeletingEvent, value); }
}
public event DetailsViewInsertedEventHandler ItemInserted {
add { Events.AddHandler (ItemInsertedEvent, value); }
remove { Events.RemoveHandler (ItemInsertedEvent, value); }
}
public event DetailsViewInsertEventHandler ItemInserting {
add { Events.AddHandler (ItemInsertingEvent, value); }
remove { Events.RemoveHandler (ItemInsertingEvent, value); }
}
public event DetailsViewModeEventHandler ModeChanging {
add { Events.AddHandler (ModeChangingEvent, value); }
remove { Events.RemoveHandler (ModeChangingEvent, value); }
}
public event EventHandler ModeChanged {
add { Events.AddHandler (ModeChangedEvent, value); }
remove { Events.RemoveHandler (ModeChangedEvent, value); }
}
public event DetailsViewUpdatedEventHandler ItemUpdated {
add { Events.AddHandler (ItemUpdatedEvent, value); }
remove { Events.RemoveHandler (ItemUpdatedEvent, value); }
}
public event DetailsViewUpdateEventHandler ItemUpdating {
add { Events.AddHandler (ItemUpdatingEvent, value); }
remove { Events.RemoveHandler (ItemUpdatingEvent, value); }
}
protected virtual void OnPageIndexChanged (EventArgs e)
{
if (Events != null) {
EventHandler eh = (EventHandler) Events [PageIndexChangedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnPageIndexChanging (DetailsViewPageEventArgs e)
{
if (Events != null) {
DetailsViewPageEventHandler eh = (DetailsViewPageEventHandler) Events [PageIndexChangingEvent];
if (eh != null) {
eh (this, e);
return;
}
}
if (!IsBoundUsingDataSourceID)
throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "PageIndexChanging"));
}
protected virtual void OnItemCommand (DetailsViewCommandEventArgs e)
{
if (Events != null) {
DetailsViewCommandEventHandler eh = (DetailsViewCommandEventHandler) Events [ItemCommandEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnItemCreated (EventArgs e)
{
if (Events != null) {
EventHandler eh = (EventHandler) Events [ItemCreatedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnItemDeleted (DetailsViewDeletedEventArgs e)
{
if (Events != null) {
DetailsViewDeletedEventHandler eh = (DetailsViewDeletedEventHandler) Events [ItemDeletedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnItemInserted (DetailsViewInsertedEventArgs e)
{
if (Events != null) {
DetailsViewInsertedEventHandler eh = (DetailsViewInsertedEventHandler) Events [ItemInsertedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnItemInserting (DetailsViewInsertEventArgs e)
{
if (Events != null) {
DetailsViewInsertEventHandler eh = (DetailsViewInsertEventHandler) Events [ItemInsertingEvent];
if (eh != null) {
eh (this, e);
return;
}
}
if (!IsBoundUsingDataSourceID)
throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemInserting"));
}
protected virtual void OnItemDeleting (DetailsViewDeleteEventArgs e)
{
if (Events != null) {
DetailsViewDeleteEventHandler eh = (DetailsViewDeleteEventHandler) Events [ItemDeletingEvent];
if (eh != null) {
eh (this, e);
return;
}
}
if (!IsBoundUsingDataSourceID)
throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemDeleting"));
}
protected virtual void OnModeChanged (EventArgs e)
{
if (Events != null) {
EventHandler eh = (EventHandler) Events [ModeChangedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnModeChanging (DetailsViewModeEventArgs e)
{
if (Events != null) {
DetailsViewModeEventHandler eh = (DetailsViewModeEventHandler) Events [ModeChangingEvent];
if (eh != null) {
eh (this, e);
return;
}
}
if (!IsBoundUsingDataSourceID)
throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ModeChanging"));
}
protected virtual void OnItemUpdated (DetailsViewUpdatedEventArgs e)
{
if (Events != null) {
DetailsViewUpdatedEventHandler eh = (DetailsViewUpdatedEventHandler) Events [ItemUpdatedEvent];
if (eh != null) eh (this, e);
}
}
protected virtual void OnItemUpdating (DetailsViewUpdateEventArgs e)
{
if (Events != null) {
DetailsViewUpdateEventHandler eh = (DetailsViewUpdateEventHandler) Events [ItemUpdatingEvent];
if (eh != null) {
eh (this, e);
return;
}
}
if (!IsBoundUsingDataSourceID)
throw new HttpException (String.Format (unhandledEventExceptionMessage, ID, "ItemUpdating"));
}
DataBoundControlMode IDataBoundItemControl.Mode {
get {
switch (CurrentMode) {
case DetailsViewMode.ReadOnly:
return DataBoundControlMode.ReadOnly;
case DetailsViewMode.Edit:
return DataBoundControlMode.Edit;
case DetailsViewMode.Insert:
return DataBoundControlMode.Insert;
default:
throw new InvalidOperationException (String.Format ("Unsupported CurrentMode value '{0}'", CurrentMode));
}
}
}
IDataSource IDataBoundControl.DataSourceObject {
get { return base.DataSourceObject; }
}
IAutoFieldGenerator IFieldControl.FieldsGenerator {
get {
throw new NotImplementedException ();
}
set {
throw new NotImplementedException ();
}
}
[WebCategoryAttribute ("Paging")]
[DefaultValueAttribute (false)]
public virtual bool AllowPaging {
get {
object ob = ViewState ["AllowPaging"];
if (ob != null)
return (bool) ob;
return false;
}
set {
ViewState ["AllowPaging"] = value;
RequireBinding ();
}
}
[DefaultValueAttribute (null)]
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
public TableItemStyle AlternatingRowStyle {
get {
if (alternatingRowStyle == null) {
alternatingRowStyle = new TableItemStyle ();
if (IsTrackingViewState)
alternatingRowStyle.TrackViewState();
}
return alternatingRowStyle;
}
}
[WebCategoryAttribute ("Behavior")]
[DefaultValueAttribute (false)]
public virtual bool AutoGenerateEditButton {
get {
object ob = ViewState ["AutoGenerateEditButton"];
if (ob != null)
return (bool) ob;
return false;
}
set {
ViewState ["AutoGenerateEditButton"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Behavior")]
[DefaultValueAttribute (false)]
public virtual bool AutoGenerateDeleteButton {
get {
object ob = ViewState ["AutoGenerateDeleteButton"];
if (ob != null)
return (bool) ob;
return false;
}
set {
ViewState ["AutoGenerateDeleteButton"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Behavior")]
[DefaultValueAttribute (false)]
public virtual bool AutoGenerateInsertButton {
get {
object ob = ViewState ["AutoGenerateInsertButton"];
if (ob != null)
return (bool) ob;
return false;
}
set {
ViewState ["AutoGenerateInsertButton"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Behavior")]
[DefaultValueAttribute (true)]
public virtual bool AutoGenerateRows {
get {
object ob = ViewState ["AutoGenerateRows"];
if (ob != null)
return (bool) ob;
return true;
}
set {
ViewState ["AutoGenerateRows"] = value;
RequireBinding ();
}
}
[UrlPropertyAttribute]
[WebCategoryAttribute ("Appearance")]
[DefaultValueAttribute ("")]
[EditorAttribute ("System.Web.UI.Design.ImageUrlEditor, " + Consts.AssemblySystem_Design, "System.Drawing.Design.UITypeEditor, " + Consts.AssemblySystem_Drawing)]
public virtual string BackImageUrl {
get {
if (ControlStyleCreated)
return ((TableStyle) ControlStyle).BackImageUrl;
return String.Empty;
}
set {
((TableStyle) ControlStyle).BackImageUrl = value;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual DetailsViewRow BottomPagerRow {
get {
EnsureChildControls ();
return bottomPagerRow;
}
}
[WebCategoryAttribute ("Accessibility")]
[DefaultValueAttribute ("")]
[LocalizableAttribute (true)]
public virtual string Caption {
get {
object ob = ViewState ["Caption"];
if (ob != null)
return (string) ob;
return String.Empty;
}
set {
ViewState ["Caption"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Accessibility")]
[DefaultValueAttribute (TableCaptionAlign.NotSet)]
public virtual TableCaptionAlign CaptionAlign {
get {
object o = ViewState ["CaptionAlign"];
if(o != null)
return (TableCaptionAlign) o;
return TableCaptionAlign.NotSet;
}
set {
ViewState ["CaptionAlign"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Layout")]
[DefaultValueAttribute (-1)]
public virtual int CellPadding {
get {
if (ControlStyleCreated)
return ((TableStyle) ControlStyle).CellPadding;
return -1;
}
set { ((TableStyle) ControlStyle).CellPadding = value; }
}
[WebCategoryAttribute ("Layout")]
[DefaultValueAttribute (0)]
public virtual int CellSpacing {
get {
if (ControlStyleCreated)
return ((TableStyle) ControlStyle).CellSpacing;
return 0;
}
set { ((TableStyle) ControlStyle).CellSpacing = value; }
}
[DefaultValueAttribute (null)]
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
public TableItemStyle CommandRowStyle {
get {
if (commandRowStyle == null) {
commandRowStyle = new TableItemStyle ();
if (IsTrackingViewState)
commandRowStyle.TrackViewState();
}
return commandRowStyle;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public DetailsViewMode CurrentMode {
get { return hasCurrentMode ? currentMode : DefaultMode; }
private set {
hasCurrentMode = true;
currentMode = value;
}
}
DetailsViewMode defaultMode = DetailsViewMode.ReadOnly;
[DefaultValueAttribute (DetailsViewMode.ReadOnly)]
[WebCategoryAttribute ("Behavior")]
public virtual DetailsViewMode DefaultMode {
get { return defaultMode; }
set {
defaultMode = value;
RequireBinding ();
}
}
[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 Fields {
get {
if (columns == null) {
columns = new DataControlFieldCollection ();
columns.FieldsChanged += new EventHandler (OnFieldsChanged);
if (IsTrackingViewState)
((IStateManager)columns).TrackViewState ();
}
return columns;
}
}
string[] dataKeyNames = null;
[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 emptyKeys;
else
return dataKeyNames;
}
set {
dataKeyNames = value;
RequireBinding ();
}
}
IOrderedDictionary KeyTable {
get {
if (_keyTable == null)
_keyTable = new OrderedDictionary (DataKeyNames.Length);
return _keyTable;
}
}
[BrowsableAttribute (false)]
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
public virtual DataKey DataKey {
get {
if (key == null)
key = new DataKey (KeyTable);
return key;
}
}
DataKey OldEditValues {
get {
if (oldEditValues == null)
oldEditValues = new DataKey (new OrderedDictionary ());
return oldEditValues;
}
}
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
[DefaultValueAttribute (null)]
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)]
[DefaultValueAttribute (null)]
public TableItemStyle EmptyDataRowStyle {
get {
if (emptyDataRowStyle == null) {
emptyDataRowStyle = new TableItemStyle ();
if (IsTrackingViewState)
emptyDataRowStyle.TrackViewState();
}
return emptyDataRowStyle;
}
}
[DefaultValue (null)]
[TemplateContainer (typeof(DetailsView), 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 {
ViewState ["EmptyDataText"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Behavior")]
[DefaultValueAttribute (false)]
public virtual bool EnablePagingCallbacks {
get {
object ob = ViewState ["EnablePagingCallbacks"];
if (ob != null)
return (bool) ob;
return false;
}
set {
ViewState ["EnablePagingCallbacks"] = value;
RequireBinding ();
}
}
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DefaultValue (null)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
public TableItemStyle FieldHeaderStyle {
get {
if (fieldHeaderStyle == null) {
fieldHeaderStyle = new TableItemStyle ();
if (IsTrackingViewState)
fieldHeaderStyle.TrackViewState();
}
return fieldHeaderStyle;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual DetailsViewRow FooterRow {
get {
EnsureChildControls ();
return footerRow;
}
}
[DefaultValue (null)]
[TemplateContainer (typeof(DetailsView), BindingDirection.OneWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate FooterTemplate {
get { return footerTemplate; }
set { footerTemplate = value; }
}
[LocalizableAttribute (true)]
[WebCategoryAttribute ("Appearance")]
[DefaultValueAttribute ("")]
public virtual string FooterText {
get {
object ob = ViewState ["FooterText"];
if (ob != null)
return (string) ob;
return String.Empty;
}
set {
ViewState ["FooterText"] = value;
RequireBinding ();
}
}
[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 DetailsViewRow HeaderRow {
get {
EnsureChildControls ();
return headerRow;
}
}
[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;
}
}
[DefaultValue (null)]
[TemplateContainer (typeof(DetailsView), BindingDirection.OneWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate HeaderTemplate {
get { return headerTemplate; }
set { headerTemplate = value; }
}
[LocalizableAttribute (true)]
[WebCategoryAttribute ("Appearance")]
[DefaultValueAttribute ("")]
public virtual string HeaderText {
get {
object ob = ViewState ["HeaderText"];
if (ob != null)
return (string) ob;
return String.Empty;
}
set {
ViewState ["HeaderText"] = value;
RequireBinding ();
}
}
[Category ("Layout")]
[DefaultValueAttribute (HorizontalAlign.NotSet)]
public virtual HorizontalAlign HorizontalAlign {
get {
if (ControlStyleCreated)
return ((TableStyle) ControlStyle).HorizontalAlign;
return HorizontalAlign.NotSet;
}
set { ((TableStyle) ControlStyle).HorizontalAlign = value; }
}
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
[DefaultValueAttribute (null)]
public TableItemStyle InsertRowStyle {
get {
if (insertRowStyle == null) {
insertRowStyle = new TableItemStyle ();
if (IsTrackingViewState)
insertRowStyle.TrackViewState();
}
return insertRowStyle;
}
}
[BrowsableAttribute (false)]
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
public virtual int PageCount {
get { return pageCount; }
private set { pageCount = value; }
}
[WebCategoryAttribute ("Paging")]
[BindableAttribute (true, BindingDirection.OneWay)]
[DefaultValueAttribute (0)]
public virtual int PageIndex {
get {
if (CurrentMode == DetailsViewMode.Insert)
return -1;
return pageIndex;
}
set {
if (value < -1)
throw new ArgumentOutOfRangeException ("PageIndex must be non-negative");
if (pageIndex == value || value == -1)
return;
pageIndex = 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)]
[TemplateContainer (typeof (DetailsView), BindingDirection.OneWay)]
[PersistenceMode (PersistenceMode.InnerProperty)]
[Browsable (false)]
public virtual ITemplate PagerTemplate {
get { return pagerTemplate; }
set { pagerTemplate = value; }
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual DetailsViewRowCollection Rows {
get {
EnsureChildControls ();
return rows;
}
}
[BrowsableAttribute(false)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
public IAutoFieldGenerator RowsGenerator {
get;
set;
}
[WebCategoryAttribute ("Styles")]
[PersistenceMode (PersistenceMode.InnerProperty)]
[NotifyParentProperty (true)]
[DesignerSerializationVisibility (DesignerSerializationVisibility.Content)]
[DefaultValue (null)]
public TableItemStyle RowStyle {
get {
if (rowStyle == null) {
rowStyle = new TableItemStyle ();
if (IsTrackingViewState)
rowStyle.TrackViewState();
}
return rowStyle;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public object SelectedValue {
get { return DataKey.Value; }
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual DetailsViewRow TopPagerRow {
get {
EnsureChildControls ();
return topPagerRow;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual object DataItem {
get {
return dataItem;
}
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public int DataItemCount {
get { return PageCount; }
}
[DesignerSerializationVisibilityAttribute (DesignerSerializationVisibility.Hidden)]
[BrowsableAttribute (false)]
public virtual int DataItemIndex {
get { return PageIndex; }
}
int IDataItemContainer.DisplayIndex {
get { return PageIndex; }
}
int IDataItemContainer.DataItemIndex {
get { return DataItemIndex; }
}
[MonoTODO ("Make use of it in the code")]
[DefaultValue (true)]
public virtual bool EnableModelValidation {
get;
set;
}
public virtual bool IsBindableType (Type type)
{
return type.IsPrimitive || type == typeof (string) || type == typeof (DateTime) || type == typeof (Guid) || type == typeof (Decimal);
}
protected override DataSourceSelectArguments CreateDataSourceSelectArguments ()
{
DataSourceSelectArguments arg = new DataSourceSelectArguments ();
DataSourceView view = GetData ();
if (AllowPaging && view.CanPage) {
arg.StartRowIndex = PageIndex;
if (view.CanRetrieveTotalRowCount) {
arg.RetrieveTotalRowCount = true;
arg.MaximumRows = 1;
} else
arg.MaximumRows = -1;
}
return arg;
}
protected virtual ICollection CreateFieldSet (object dataItem, bool useDataSource)
{
bool autoGenerate = AutoGenerateRows;
if (autoGenerate) {
IAutoFieldGenerator fieldGenerator = RowsGenerator;
if (fieldGenerator != null)
return fieldGenerator.GenerateFields (this);
}
ArrayList fields = new ArrayList ();
if (AutoGenerateRows) {
if (useDataSource) {
if (dataItem != null)
fields.AddRange (CreateAutoGeneratedRows (dataItem));
} else {
if (autoFieldProperties != null) {
foreach (AutoGeneratedFieldProperties props in autoFieldProperties)
fields.Add (CreateAutoGeneratedRow (props));
}
}
}
fields.AddRange (Fields);
if (AutoGenerateEditButton || AutoGenerateDeleteButton || AutoGenerateInsertButton) {
CommandField field = new CommandField ();
field.ShowEditButton = AutoGenerateEditButton;
field.ShowDeleteButton = AutoGenerateDeleteButton;
field.ShowInsertButton = AutoGenerateInsertButton;
fields.Add (field);
}
return fields;
}
protected virtual ICollection CreateAutoGeneratedRows (object dataItem)
{
if (dataItem == null)
return null;
ArrayList list = new ArrayList ();
autoFieldProperties = CreateAutoFieldProperties (dataItem);
foreach (AutoGeneratedFieldProperties props in autoFieldProperties)
list.Add (CreateAutoGeneratedRow (props));
return list;
}
protected virtual AutoGeneratedField CreateAutoGeneratedRow (AutoGeneratedFieldProperties fieldProperties)
{
return new AutoGeneratedField (fieldProperties);
}
AutoGeneratedFieldProperties[] CreateAutoFieldProperties (object dataItem)
{
if (IsBindableType (dataItem.GetType ())) {
AutoGeneratedFieldProperties field = new AutoGeneratedFieldProperties ();
((IStateManager) field).TrackViewState ();
field.Name = "Item";
field.DataField = BoundField.ThisExpression;
field.Type = dataItem.GetType ();
return new AutoGeneratedFieldProperties [] { field };
}
PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem, false);
if (props != null && props.Count > 0) {
ArrayList retVal = new ArrayList ();
foreach (PropertyDescriptor current in props) {
if (IsBindableType (current.PropertyType)) {
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 (AutoGeneratedFieldProperties []) retVal.ToArray (typeof (AutoGeneratedFieldProperties));
}
throw new HttpException (String.Format ("DetailsView with id '{0}' did not have any properties or attributes from which to generate fields. Ensure that your data source has content.", ID));
}
protected virtual DetailsViewRow CreateRow (int rowIndex, DataControlRowType rowType, DataControlRowState rowState)
{
DetailsViewRow row;
if (rowType == DataControlRowType.Pager)
row = new DetailsViewPagerRow (rowIndex, rowType, rowState);
else
row = new DetailsViewRow (rowIndex, rowType, rowState);
return row;
}
void RequireBinding ()
{
if (Initialized)
RequiresDataBinding = true;
}
protected virtual Table CreateTable ()
{
return new ContainedTable (this);
}
protected override Style CreateControlStyle ()
{
TableStyle style = new TableStyle ();
style.GridLines = GridLines.Both;
style.CellSpacing = 0;
return style;
}
protected override int CreateChildControls (IEnumerable data, bool dataBinding)
{
PagedDataSource dataSource = new PagedDataSource ();
dataSource.DataSource = CurrentMode != DetailsViewMode.Insert ? data : null;
dataSource.AllowPaging = AllowPaging;
dataSource.PageSize = 1;
dataSource.CurrentPageIndex = PageIndex;
if (dataBinding && CurrentMode != DetailsViewMode.Insert) {
DataSourceView view = GetData ();
if (view != null && view.CanPage) {
dataSource.AllowServerPaging = true;
if (SelectArguments.RetrieveTotalRowCount)
dataSource.VirtualCount = SelectArguments.TotalRowCount;
}
}
bool showPager = AllowPaging && (dataSource.PageCount > 1);
Controls.Clear ();
table = CreateTable ();
Controls.Add (table);
headerRow = null;
footerRow = null;
topPagerRow = null;
bottomPagerRow = null;
ArrayList list = new ArrayList ();
// Gets the current data item
if (AllowPaging) {
PageCount = dataSource.DataSourceCount;
if (PageIndex >= PageCount && PageCount > 0)
pageIndex = dataSource.CurrentPageIndex = PageCount - 1;
if (dataSource.DataSource != null) {
IEnumerator e = dataSource.GetEnumerator ();
if (e.MoveNext ())
dataItem = e.Current;
}
} else {
int page = 0;
object lastItem = null;
if (dataSource.DataSource != null) {
IEnumerator e = dataSource.GetEnumerator ();
for (; e.MoveNext (); page++) {
lastItem = e.Current;
if (page == PageIndex)
dataItem = e.Current;
}
}
PageCount = page;
if (PageIndex >= PageCount && PageCount > 0) {
pageIndex = PageCount - 1;
dataItem = lastItem;
}
}
if (PageCount == 0 && CurrentMode != DetailsViewMode.Insert) {
DetailsViewRow row = CreateEmptyRow ();
if (row != null) {
table.Rows.Add (row);
list.Add (row);
}
} else {
// Creates the set of fields to show
ICollection fieldCollection = CreateFieldSet (dataItem, dataBinding && dataItem != null);
DataControlField [] fields = new DataControlField [fieldCollection.Count];
fieldCollection.CopyTo (fields, 0);
foreach (DataControlField field in fields) {
field.Initialize (false, this);
if (EnablePagingCallbacks)
field.ValidateSupportsCallback ();
}
// Main table creation
headerRow = CreateRow (-1, DataControlRowType.Header, DataControlRowState.Normal);
DataControlFieldCell headerCell = new DataControlFieldCell (null);
headerCell.ColumnSpan = 2;
if (headerTemplate != null)
headerTemplate.InstantiateIn (headerCell);
else if (!String.IsNullOrEmpty (HeaderText))
headerCell.Text = HeaderText;
else
headerRow.Visible = false;
headerRow.Cells.Add (headerCell);
table.Rows.Add (headerRow);
if (showPager && PagerSettings.Position == PagerPosition.Top ||
PagerSettings.Position == PagerPosition.TopAndBottom) {
topPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
InitializePager (topPagerRow, dataSource);
table.Rows.Add (topPagerRow);
}
foreach (DataControlField field in fields) {
DataControlRowState rstate = GetRowState (list.Count);
DetailsViewRow row = CreateRow (PageIndex, DataControlRowType.DataRow, rstate);
InitializeRow (row, field);
table.Rows.Add (row);
list.Add (row);
}
footerRow = CreateRow (-1, DataControlRowType.Footer, DataControlRowState.Normal);
DataControlFieldCell footerCell = new DataControlFieldCell (null);
footerCell.ColumnSpan = 2;
if (footerTemplate != null)
footerTemplate.InstantiateIn (footerCell);
else if (!String.IsNullOrEmpty (FooterText))
footerCell.Text = FooterText;
else
footerRow.Visible = false;
footerRow.Cells.Add (footerCell);
table.Rows.Add (footerRow);
if (showPager && PagerSettings.Position == PagerPosition.Bottom ||
PagerSettings.Position == PagerPosition.TopAndBottom) {
bottomPagerRow = CreateRow (-1, DataControlRowType.Pager, DataControlRowState.Normal);
InitializePager (bottomPagerRow, dataSource);
table.Rows.Add (bottomPagerRow);
}
}
rows = new DetailsViewRowCollection (list);
if (dataBinding)
DataBind (false);
OnItemCreated (EventArgs.Empty);
return PageCount;
}
protected override void EnsureDataBound ()
{
if (CurrentMode == DetailsViewMode.Insert) {
if (RequiresDataBinding) {
OnDataBinding (EventArgs.Empty);
RequiresDataBinding = false;
InternalPerformDataBinding (null);
MarkAsDataBound ();
OnDataBound (EventArgs.Empty);
}
} else
base.EnsureDataBound ();
}
DataControlRowState GetRowState (int index)
{
DataControlRowState rstate = (index % 2) == 0 ? DataControlRowState.Normal : DataControlRowState.Alternate;
if (CurrentMode == DetailsViewMode.Edit)
rstate |= DataControlRowState.Edit;
else if (CurrentMode == DetailsViewMode.Insert)
rstate |= DataControlRowState.Insert;
return rstate;
}
protected virtual void InitializePager (DetailsViewRow row, PagedDataSource dataSource)
{
TableCell cell = new TableCell ();
cell.ColumnSpan = 2;
if (pagerTemplate != null)
pagerTemplate.InstantiateIn (cell);
else
cell.Controls.Add (PagerSettings.CreatePagerControl (dataSource.CurrentPageIndex, dataSource.PageCount));
row.Cells.Add (cell);
}
DetailsViewRow CreateEmptyRow ()
{
TableCell cell = new TableCell ();
if (emptyDataTemplate != null)
emptyDataTemplate.InstantiateIn (cell);
else if (!String.IsNullOrEmpty (EmptyDataText))
cell.Text = EmptyDataText;
else
return null;
DetailsViewRow row = CreateRow (-1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
row.Cells.Add (cell);
return row;
}
protected virtual void InitializeRow (DetailsViewRow row, DataControlField field)
{
if (!field.Visible) {
row.Visible = false;
return;
}
row.ContainingField = field;
DataControlFieldCell cell;
if (field.ShowHeader) {
cell = new DataControlFieldCell (field);
row.Cells.Add (cell);
field.InitializeCell (cell, DataControlCellType.Header, row.RowState, row.RowIndex);
}
cell = new DataControlFieldCell (field);
if (!field.ShowHeader)
cell.ColumnSpan = 2;
row.Cells.Add (cell);
field.InitializeCell (cell, DataControlCellType.DataCell, row.RowState, row.RowIndex);
if (CurrentMode == DetailsViewMode.Insert && !field.InsertVisible)
row.Visible = false;
}
void FillRowDataKey (object dataItem)
{
KeyTable.Clear ();
if (cachedKeyProperties == null) {
PropertyDescriptorCollection props = TypeDescriptor.GetProperties (dataItem);
cachedKeyProperties = new PropertyDescriptor [DataKeyNames.Length];
for (int n=0; n<DataKeyNames.Length; n++) {
PropertyDescriptor p = props.Find (DataKeyNames [n], true);
if (p == null)
throw new InvalidOperationException ("Property '" + DataKeyNames[n] + "' not found in object of type " + dataItem.GetType());
cachedKeyProperties [n] = p;
}
}
foreach (PropertyDescriptor p in cachedKeyProperties)
KeyTable [p.Name] = p.GetValue (dataItem);
}
IOrderedDictionary GetRowValues (bool includeReadOnlyFields, bool includePrimaryKey)
{
OrderedDictionary dic = new OrderedDictionary ();
ExtractRowValues (dic, includeReadOnlyFields, includePrimaryKey);
return dic;
}
protected virtual void ExtractRowValues (IOrderedDictionary fieldValues, bool includeReadOnlyFields, bool includePrimaryKey)
{
foreach (DetailsViewRow row in Rows) {
if (row.Cells.Count < 1)
continue;
DataControlFieldCell c = row.Cells[row.Cells.Count-1] as DataControlFieldCell;
if (c != null)
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 (EnablePagingCallbacks)
return HtmlTextWriterTag.Div;
else
return HtmlTextWriterTag.Table;
}
}
public sealed override void DataBind ()
{
cachedKeyProperties = null;
base.DataBind ();
if (dataItem != null) {
if (CurrentMode == DetailsViewMode.Edit)
oldEditValues = new DataKey (GetRowValues (false, true));
FillRowDataKey (dataItem);
key = new DataKey (KeyTable);
}
}
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;
foreach (DetailsViewRow row in table.Rows) {
switch (row.RowType) {
case DataControlRowType.Header:
if (headerStyle != null && !headerStyle.IsEmpty)
row.ControlStyle.CopyFrom (headerStyle);
break;
case DataControlRowType.Footer:
if (footerStyle != null && !footerStyle.IsEmpty)
row.ControlStyle.CopyFrom (footerStyle);
break;
case DataControlRowType.Pager:
if (pagerStyle != null && !pagerStyle.IsEmpty)
row.ControlStyle.CopyFrom (pagerStyle);
break;
case DataControlRowType.EmptyDataRow:
if (emptyDataRowStyle != null && !emptyDataRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (emptyDataRowStyle);
break;
case DataControlRowType.DataRow:
if (rowStyle != null && !rowStyle.IsEmpty)
row.ControlStyle.CopyFrom (rowStyle);
if ((row.RowState & DataControlRowState.Alternate) != 0 && alternatingRowStyle != null && !alternatingRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (alternatingRowStyle);
break;
default:
break;
}
if (row.ContainingField is CommandField) {
if (commandRowStyle != null && !commandRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (commandRowStyle);
} else {
if ((row.RowState & DataControlRowState.Edit) != 0 && editRowStyle != null && !editRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (editRowStyle);
if ((row.RowState & DataControlRowState.Insert) != 0) {
if (insertRowStyle != null && !insertRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (insertRowStyle);
else if (editRowStyle != null && !editRowStyle.IsEmpty)
row.ControlStyle.CopyFrom (editRowStyle);
}
}
for (int n = 0; n < row.Cells.Count; n++) {
DataControlFieldCell fcell = row.Cells [n] as DataControlFieldCell;
if (fcell != null && fcell.ContainingField != null) {
DataControlField field = fcell.ContainingField;
if (n == 0 && field.ShowHeader) {
if (fieldHeaderStyle != null && !fieldHeaderStyle.IsEmpty)
fcell.ControlStyle.CopyFrom (fieldHeaderStyle);
if (field.HeaderStyleCreated && !field.HeaderStyle.IsEmpty)
fcell.ControlStyle.CopyFrom (field.HeaderStyle);
} else {
if (field.ControlStyleCreated && !field.ControlStyle.IsEmpty) {
foreach (Control c in fcell.Controls) {
WebControl wc = c as WebControl;
if (wc != null)
wc.ControlStyle.MergeWith (field.ControlStyle);
}
}
if (field.ItemStyleCreated && !field.ItemStyle.IsEmpty)
fcell.ControlStyle.CopyFrom (field.ItemStyle);
}
}
}
}
}
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 OnDataSourceViewChanged (object sender, EventArgs e)
{
base.OnDataSourceViewChanged (sender, e);
RequireBinding ();
}
protected override bool OnBubbleEvent (object source, EventArgs e)
{
DetailsViewCommandEventArgs args = e as DetailsViewCommandEventArgs;
if (args != null) {
bool causesValidation = false;
IButtonControl button = args.CommandSource as IButtonControl;
if (button != null && button.CausesValidation) {
Page.Validate (button.ValidationGroup);
causesValidation = true;
}
ProcessCommand (args, causesValidation);
return true;
}
return base.OnBubbleEvent (source, e);
}
void ProcessCommand (DetailsViewCommandEventArgs args, bool causesValidation) {
OnItemCommand (args);
ProcessEvent (args.CommandName, args.CommandArgument as string, causesValidation);
}
void IPostBackEventHandler.RaisePostBackEvent (string eventArgument)
{
RaisePostBackEvent (eventArgument);
}
// TODO: This is prolly obsolete
protected virtual void RaisePostBackEvent (string eventArgument)
{
ValidateEvent (UniqueID, eventArgument);
int i = eventArgument.IndexOf ('$');
CommandEventArgs arg;
if (i != -1)
arg = new CommandEventArgs (eventArgument.Substring (0, i), eventArgument.Substring (i + 1));
else
arg = new CommandEventArgs (eventArgument, null);
ProcessCommand (new DetailsViewCommandEventArgs (this, arg), 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.EditCommandName:
ProcessChangeMode (DetailsViewMode.Edit);
break;
case DataControlCommands.NewCommandName:
ProcessChangeMode (DetailsViewMode.Insert);
break;
case DataControlCommands.UpdateCommandName:
UpdateItem (param, causesValidation);
break;
case DataControlCommands.CancelCommandName:
CancelEdit ();
break;
case DataControlCommands.DeleteCommandName:
DeleteItem ();
break;
case DataControlCommands.InsertCommandName:
InsertItem (causesValidation);
break;
}
}
public
void SetPageIndex (int newIndex)
{
DetailsViewPageEventArgs args = new DetailsViewPageEventArgs (newIndex);
OnPageIndexChanging (args);
if (args.Cancel || !IsBoundUsingDataSourceID)
return;
if (args.NewPageIndex < 0 || args.NewPageIndex >= PageCount)
return;
EndRowEdit (false);
PageIndex = args.NewPageIndex;
OnPageIndexChanged (EventArgs.Empty);
}
public void ChangeMode (DetailsViewMode newMode)
{
CurrentMode = newMode;
RequireBinding ();
}
void ProcessChangeMode (DetailsViewMode newMode)
{
DetailsViewModeEventArgs args = new DetailsViewModeEventArgs (newMode, false);
OnModeChanging (args);
if (args.Cancel || !IsBoundUsingDataSourceID)
return;
ChangeMode (args.NewMode);
OnModeChanged (EventArgs.Empty);
}
void CancelEdit ()
{
DetailsViewModeEventArgs args = new DetailsViewModeEventArgs (DetailsViewMode.ReadOnly, true);
OnModeChanging (args);
if (args.Cancel || !IsBoundUsingDataSourceID)
return;
EndRowEdit ();
}
public virtual void UpdateItem (bool causesValidation)
{
UpdateItem (null, causesValidation);
}
void UpdateItem (string param, bool causesValidation)
{
if (causesValidation && Page != null && !Page.IsValid)
return;
if (CurrentMode != DetailsViewMode.Edit)
throw new HttpException ();
currentEditOldValues = OldEditValues.Values;
currentEditRowKeys = DataKey.Values;
currentEditNewValues = GetRowValues (false, false);
DetailsViewUpdateEventArgs args = new DetailsViewUpdateEventArgs (param, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
OnItemUpdating (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));
}
bool UpdateCallback (int recordsAffected, Exception exception)
{
DetailsViewUpdatedEventArgs dargs = new DetailsViewUpdatedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditOldValues, currentEditNewValues);
OnItemUpdated (dargs);
if (!dargs.KeepInEditMode)
EndRowEdit ();
return dargs.ExceptionHandled;
}
public virtual void InsertItem (bool causesValidation)
{
InsertItem (null, causesValidation);
}
void InsertItem (string param, bool causesValidation)
{
if (causesValidation && Page != null && !Page.IsValid)
return;
if (CurrentMode != DetailsViewMode.Insert)
throw new HttpException ();
currentEditNewValues = GetRowValues (false, true);
DetailsViewInsertEventArgs args = new DetailsViewInsertEventArgs (param, currentEditNewValues);
OnItemInserting (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.Insert (currentEditNewValues, new DataSourceViewOperationCallback (InsertCallback));
}
bool InsertCallback (int recordsAffected, Exception exception)
{
DetailsViewInsertedEventArgs dargs = new DetailsViewInsertedEventArgs (recordsAffected, exception, currentEditNewValues);
OnItemInserted (dargs);
if (!dargs.KeepInInsertMode)
EndRowEdit ();
return dargs.ExceptionHandled;
}
public virtual void DeleteItem ()
{
currentEditRowKeys = DataKey.Values;
currentEditNewValues = GetRowValues (true, false);
DetailsViewDeleteEventArgs args = new DetailsViewDeleteEventArgs (PageIndex, currentEditRowKeys, currentEditNewValues);
OnItemDeleting (args);
if (args.Cancel || !IsBoundUsingDataSourceID)
return;
DataSourceView view = GetData ();
if (view != null)
view.Delete (currentEditRowKeys, currentEditNewValues, new DataSourceViewOperationCallback (DeleteCallback));
else {
DetailsViewDeletedEventArgs dargs = new DetailsViewDeletedEventArgs (0, null, currentEditRowKeys, currentEditNewValues);
OnItemDeleted (dargs);
}
if (PageIndex > 0 && PageIndex == PageCount - 1)
PageIndex --;
RequireBinding ();
}
bool DeleteCallback (int recordsAffected, Exception exception)
{
DetailsViewDeletedEventArgs dargs = new DetailsViewDeletedEventArgs (recordsAffected, exception, currentEditRowKeys, currentEditNewValues);
OnItemDeleted (dargs);
return dargs.ExceptionHandled;
}
void EndRowEdit ()
{
EndRowEdit (true);
}
void EndRowEdit (bool switchToDefaultMode)
{
if (switchToDefaultMode)
ChangeMode (DefaultMode);
oldEditValues = new DataKey (new OrderedDictionary ());
currentEditRowKeys = null;
currentEditOldValues = null;
currentEditNewValues = null;
RequireBinding ();
}
protected internal override void LoadControlState (object ob)
{
if (ob == null)
return;
object[] state = (object[]) ob;
base.LoadControlState (state[0]);
pageIndex = (int) state[1];
pageCount = (int) state[2];
CurrentMode = (DetailsViewMode) state[3];
dataKeyNames = (string[]) state[4];
defaultMode = (DetailsViewMode) state[5];
if (state [6] != null)
((IStateManager) DataKey).LoadViewState (state [6]);
if (state [7] != null)
((IStateManager) OldEditValues).LoadViewState (state [7]);
}
protected internal override object SaveControlState ()
{
object bstate = base.SaveControlState ();
return new object[] {
bstate,
pageIndex,
pageCount,
CurrentMode,
dataKeyNames,
defaultMode,
(key == null ? null : ((IStateManager)key).SaveViewState()),
(oldEditValues == null ? null : ((IStateManager) oldEditValues).SaveViewState ())
};
}
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 (editRowStyle != null)
((IStateManager)editRowStyle).TrackViewState();
if (insertRowStyle != null)
((IStateManager)insertRowStyle).TrackViewState();
if (emptyDataRowStyle != null)
((IStateManager)emptyDataRowStyle).TrackViewState();
if (key != null)
((IStateManager)key).TrackViewState();
if (autoFieldProperties != null) {
foreach (IStateManager sm in autoFieldProperties)
sm.TrackViewState ();
}
if (ControlStyleCreated)
ControlStyle.TrackViewState ();
}
protected override object SaveViewState()
{
object[] states = new object [13];
states[0] = base.SaveViewState();
states[1] = (columns == null ? null : ((IStateManager)columns).SaveViewState());
states[2] = (pagerSettings == null ? null : ((IStateManager)pagerSettings).SaveViewState());
states[3] = (alternatingRowStyle == null ? null : ((IStateManager)alternatingRowStyle).SaveViewState());
states[4] = (footerStyle == null ? null : ((IStateManager)footerStyle).SaveViewState());
states[5] = (headerStyle == null ? null : ((IStateManager)headerStyle).SaveViewState());
states[6] = (pagerStyle == null ? null : ((IStateManager)pagerStyle).SaveViewState());
states[7] = (rowStyle == null ? null : ((IStateManager)rowStyle).SaveViewState());
states[8] = (insertRowStyle == null ? null : ((IStateManager)insertRowStyle).SaveViewState());
states[9] = (editRowStyle == null ? null : ((IStateManager)editRowStyle).SaveViewState());
states[10] = (emptyDataRowStyle == null ? null : ((IStateManager)emptyDataRowStyle).SaveViewState());
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) states [11] = data;
}
if (ControlStyleCreated)
states [12] = ControlStyle.SaveViewState ();
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)Fields).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)InsertRowStyle).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)
ControlStyle.LoadViewState (states [12]);
}
void ICallbackEventHandler.RaiseCallbackEvent (string eventArgs)
{
RaiseCallbackEvent (eventArgs);
}
protected virtual void RaiseCallbackEvent (string eventArgs)
{
string[] clientData = eventArgs.Split ('|');
PageIndex = int.Parse (clientData[0]);
RaisePostBackEvent (clientData[1]);
DataBind ();
}
string ICallbackEventHandler.GetCallbackResult ()
{
return GetCallbackResult ();
}
protected virtual string GetCallbackResult ()
{
PrepareControlHierarchy ();
StringWriter sw = new StringWriter ();
sw.Write (PageIndex.ToString () + '|');
HtmlTextWriter writer = new HtmlTextWriter (sw);
RenderGrid (writer);
return sw.ToString ();
}
protected virtual string GetCallbackScript (IButtonControl buttonControl, string argument)
{
if (EnablePagingCallbacks) {
Page page = Page;
if (page != null)
page.ClientScript.RegisterForEventValidation (UniqueID, argument);
return "javascript:DetailsView_ClientEvent (\"" + ClientID + "\",\"" + buttonControl.CommandName + "$" + buttonControl.CommandArgument + "\"); return false;";
} else
return null;
}
string ICallbackContainer.GetCallbackScript (IButtonControl control, string argument)
{
return GetCallbackScript (control, argument);
}
protected override void OnPagePreLoad (object sender, EventArgs e)
{
base.OnPagePreLoad (sender, e);
if (Page.IsPostBack && EnablePagingCallbacks) {
int page;
if (int.TryParse (Page.Request.Form [ClientID + "_Page"], out page))
PageIndex = page;
}
}
const string onPreRenderScript = @"var {0} = new Object ();
{0}.pageIndex = {1};
{0}.uid = {2};
{0}.form = {3};
";
protected internal override void OnPreRender (EventArgs e)
{
base.OnPreRender (e);
Page page = Page;
if (EnablePagingCallbacks && page != null) {
ClientScriptManager scriptManager = page.ClientScript;
if (!scriptManager.IsClientScriptIncludeRegistered (typeof(DetailsView), "DetailsView.js")) {
string url = scriptManager.GetWebResourceUrl (typeof(DetailsView), "DetailsView.js");
scriptManager.RegisterClientScriptInclude (typeof(DetailsView), "DetailsView.js", url);
}
scriptManager.RegisterHiddenField (ClientID + "_Page", PageIndex.ToString ());
string cgrid = ClientID + "_data";
string script = String.Format (onPreRenderScript,
cgrid,
ClientScriptManager.GetScriptLiteral (PageIndex),
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, true);
}
}
protected internal override void Render (HtmlTextWriter writer)
{
PrepareControlHierarchy ();
if (EnablePagingCallbacks)
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 DetailsView '" + 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;
}
}
}