537 lines
18 KiB
C#
537 lines
18 KiB
C#
|
//------------------------------------------------------------------------------
|
||
|
|
// <copyright file="SelectionListDesigner.cs" company="Microsoft">
|
||
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
||
|
|
// </copyright>
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
namespace System.Web.UI.Design.MobileControls
|
||
|
|
{
|
||
|
|
using System;
|
||
|
|
using System.Collections;
|
||
|
|
using System.ComponentModel;
|
||
|
|
using System.ComponentModel.Design;
|
||
|
|
using System.Data;
|
||
|
|
using System.Diagnostics;
|
||
|
|
using System.Web.UI.MobileControls;
|
||
|
|
using System.Web.UI.Design.MobileControls.Adapters;
|
||
|
|
|
||
|
|
using DataBinding = System.Web.UI.DataBinding;
|
||
|
|
|
||
|
|
[
|
||
|
|
System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand,
|
||
|
|
Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
|
||
|
|
]
|
||
|
|
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
|
||
|
|
internal class SelectionListDesigner :
|
||
|
|
MobileControlDesigner, IListDesigner, IDataSourceProvider
|
||
|
|
{
|
||
|
|
private SelectionList _selectionList;
|
||
|
|
private DesignerVerbCollection _designerVerbs;
|
||
|
|
|
||
|
|
private DataTable _dummyDataTable;
|
||
|
|
private DataTable _designTimeDataTable;
|
||
|
|
|
||
|
|
private const String _dataSourcePropertyName = "DataSource";
|
||
|
|
private const String _dataMemberPropertyName = "DataMember";
|
||
|
|
private const String _dataTextFieldPropertyName = "DataTextField";
|
||
|
|
private const String _dataValueFieldPropertyName = "DataValueField";
|
||
|
|
private static readonly Attribute[] _emptyAttrs = new Attribute[0];
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// </summary>
|
||
|
|
public String DataValueField
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
return _selectionList.DataValueField;
|
||
|
|
}
|
||
|
|
set
|
||
|
|
{
|
||
|
|
_selectionList.DataValueField = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// </summary>
|
||
|
|
public String DataTextField
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
return _selectionList.DataTextField;
|
||
|
|
}
|
||
|
|
set
|
||
|
|
{
|
||
|
|
_selectionList.DataTextField = value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public String DataMember
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
return _selectionList.DataMember;
|
||
|
|
}
|
||
|
|
set
|
||
|
|
{
|
||
|
|
_selectionList.DataMember = value;
|
||
|
|
OnDataSourceChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
public MobileListItemCollection Items
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
return _selectionList.Items;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Gets or sets the data source property.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <value>
|
||
|
|
/// <para>
|
||
|
|
/// A string indicating the data source for the designer's control.
|
||
|
|
/// </para>
|
||
|
|
/// </value>
|
||
|
|
/// <remarks>
|
||
|
|
/// <para>
|
||
|
|
/// Designer implementation of a DataSource property that operates on the
|
||
|
|
/// DataSource property in the control's binding collection.
|
||
|
|
/// </para>
|
||
|
|
/// </remarks>
|
||
|
|
public String DataSource
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
DataBinding binding = DataBindings[_dataSourcePropertyName];
|
||
|
|
|
||
|
|
if (binding != null)
|
||
|
|
{
|
||
|
|
return binding.Expression;
|
||
|
|
}
|
||
|
|
return String.Empty;
|
||
|
|
}
|
||
|
|
set
|
||
|
|
{
|
||
|
|
if ((value == null) || (value.Length == 0))
|
||
|
|
{
|
||
|
|
DataBindings.Remove(_dataSourcePropertyName);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
DataBinding binding = DataBindings[_dataSourcePropertyName];
|
||
|
|
|
||
|
|
if (binding == null)
|
||
|
|
{
|
||
|
|
binding = new DataBinding(_dataSourcePropertyName, typeof(IEnumerable), value);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
binding.Expression = value;
|
||
|
|
}
|
||
|
|
DataBindings.Add(binding);
|
||
|
|
}
|
||
|
|
|
||
|
|
OnDataSourceChanged();
|
||
|
|
OnBindingsCollectionChanged(_dataSourcePropertyName);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// The designer's collection of verbs.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <value>
|
||
|
|
/// <para>
|
||
|
|
/// An array of type <see cref='DesignerVerb'/> containing the verbs available to the
|
||
|
|
/// designer.
|
||
|
|
/// </para>
|
||
|
|
/// </value>
|
||
|
|
public override DesignerVerbCollection Verbs
|
||
|
|
{
|
||
|
|
get
|
||
|
|
{
|
||
|
|
if (null == _designerVerbs)
|
||
|
|
{
|
||
|
|
_designerVerbs = base.Verbs;
|
||
|
|
_designerVerbs.Add(new DesignerVerb(SR.GetString(SR.PropertyBuilderVerb),
|
||
|
|
new EventHandler(this.OnPropertyBuilder)));
|
||
|
|
}
|
||
|
|
|
||
|
|
return _designerVerbs;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Gets sample data matching the schema of the selected data source.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='minimumRows'>
|
||
|
|
/// The minimum rows of sample data the data source data should contain.
|
||
|
|
/// </param>
|
||
|
|
/// <param name='dummyDataSource'>
|
||
|
|
/// Whether the data source being returned is a dummy data source.
|
||
|
|
/// </param>
|
||
|
|
/// <returns>
|
||
|
|
/// <para>
|
||
|
|
/// An IEnumerable containing a live data source for use at
|
||
|
|
/// design time.
|
||
|
|
/// </para>
|
||
|
|
/// </returns>
|
||
|
|
///
|
||
|
|
protected IEnumerable GetDesignTimeDataSource(
|
||
|
|
int minimumRows, out bool dummyDataSource)
|
||
|
|
{
|
||
|
|
IEnumerable selectedDataSource = GetResolvedSelectedDataSource();
|
||
|
|
return GetDesignTimeDataSource(
|
||
|
|
selectedDataSource, minimumRows, out dummyDataSource);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Gets sample data matching the schema of the selected data source.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='selectedDataSource'>
|
||
|
|
/// The selected data source to be used as a reference for the shape of the data.
|
||
|
|
/// </param>
|
||
|
|
/// <param name='minimumRows'>
|
||
|
|
/// The minimum rows of sample data the data source data should contain.
|
||
|
|
/// </param>
|
||
|
|
/// <param name='dummyDataSource'>
|
||
|
|
/// Whether the data source being returned is a dummy data source.
|
||
|
|
/// </param>
|
||
|
|
/// <returns>
|
||
|
|
/// <para>
|
||
|
|
/// An IEnumerable containing
|
||
|
|
/// a live data source for use at design time.
|
||
|
|
/// </para>
|
||
|
|
/// </returns>
|
||
|
|
///
|
||
|
|
protected IEnumerable GetDesignTimeDataSource(
|
||
|
|
IEnumerable selectedDataSource, int minimumRows, out bool dummyDataSource)
|
||
|
|
{
|
||
|
|
DataTable dataTable = _designTimeDataTable;
|
||
|
|
dummyDataSource = false;
|
||
|
|
|
||
|
|
// use the datatable corresponding to the selected datasource if possible
|
||
|
|
if (dataTable == null)
|
||
|
|
{
|
||
|
|
if (selectedDataSource != null)
|
||
|
|
{
|
||
|
|
_designTimeDataTable =
|
||
|
|
DesignTimeData.CreateSampleDataTable(selectedDataSource);
|
||
|
|
dataTable = _designTimeDataTable;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (dataTable == null)
|
||
|
|
{
|
||
|
|
// fallback on a dummy datasource if we can't create a sample datatable
|
||
|
|
if (_dummyDataTable == null)
|
||
|
|
{
|
||
|
|
_dummyDataTable = DesignTimeData.CreateDummyDataTable();
|
||
|
|
}
|
||
|
|
|
||
|
|
dataTable = _dummyDataTable;
|
||
|
|
dummyDataSource = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
IEnumerable liveDataSource =
|
||
|
|
DesignTimeData.GetDesignTimeDataSource(dataTable, minimumRows);
|
||
|
|
return liveDataSource;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Gets the HTML to be used for the design-time representation
|
||
|
|
/// of the control.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>
|
||
|
|
/// <para>
|
||
|
|
/// The design-time HTML.
|
||
|
|
/// </para>
|
||
|
|
/// </returns>
|
||
|
|
protected override String GetDesignTimeNormalHtml()
|
||
|
|
{
|
||
|
|
const int numberOfStaticItems = 5;
|
||
|
|
IEnumerable selectedDataSource = null;
|
||
|
|
String oldDataTextField = null, oldDataValueField = null;
|
||
|
|
bool dummyDataSource = false;
|
||
|
|
|
||
|
|
DesignerTextWriter htmlWriter = new DesignerTextWriter(true);
|
||
|
|
|
||
|
|
MobileListItemCollection items = _selectionList.Items;
|
||
|
|
Debug.Assert(items != null, "Items is null in LisControl");
|
||
|
|
|
||
|
|
if (items.Count > 0)
|
||
|
|
{
|
||
|
|
_selectionList.Adapter.Render(htmlWriter);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
MobileListItem[] oldItems = items.GetAll();
|
||
|
|
int sampleRows = numberOfStaticItems;
|
||
|
|
|
||
|
|
// try designtime databinding.
|
||
|
|
selectedDataSource = GetResolvedSelectedDataSource();
|
||
|
|
|
||
|
|
IEnumerable designTimeDataSource =
|
||
|
|
GetDesignTimeDataSource(
|
||
|
|
selectedDataSource,
|
||
|
|
sampleRows,
|
||
|
|
out dummyDataSource);
|
||
|
|
|
||
|
|
// If dummy datasource is applied, change the data fields so that
|
||
|
|
// dummy source will be rendered.
|
||
|
|
if (dummyDataSource)
|
||
|
|
{
|
||
|
|
oldDataTextField = _selectionList.DataTextField;
|
||
|
|
oldDataValueField = _selectionList.DataValueField;
|
||
|
|
_selectionList.DataTextField = "Column0";
|
||
|
|
_selectionList.DataValueField = "Column1";
|
||
|
|
}
|
||
|
|
|
||
|
|
try
|
||
|
|
{
|
||
|
|
_selectionList.DataSource = designTimeDataSource;
|
||
|
|
_selectionList.DataBind();
|
||
|
|
_selectionList.Adapter.Render(htmlWriter);
|
||
|
|
}
|
||
|
|
finally
|
||
|
|
{
|
||
|
|
_selectionList.DataSource = null;
|
||
|
|
_selectionList.Items.SetAll(oldItems);
|
||
|
|
|
||
|
|
if (dummyDataSource)
|
||
|
|
{
|
||
|
|
_selectionList.DataTextField = oldDataTextField;
|
||
|
|
_selectionList.DataValueField = oldDataValueField;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return htmlWriter.ToString();
|
||
|
|
}
|
||
|
|
|
||
|
|
public IEnumerable GetResolvedSelectedDataSource()
|
||
|
|
{
|
||
|
|
IEnumerable selectedDataSource = null;
|
||
|
|
|
||
|
|
DataBinding binding = DataBindings["DataSource"];
|
||
|
|
|
||
|
|
if (binding != null)
|
||
|
|
{
|
||
|
|
selectedDataSource =
|
||
|
|
DesignTimeData.GetSelectedDataSource(
|
||
|
|
_selectionList,
|
||
|
|
binding.Expression,
|
||
|
|
DataMember);
|
||
|
|
}
|
||
|
|
|
||
|
|
return selectedDataSource;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Gets the selected data source component from the component's container.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <returns>
|
||
|
|
/// <para>
|
||
|
|
/// An IEnumerable with the
|
||
|
|
/// selected data source, or <see langword='null'/> if a data source is not found, or if a data
|
||
|
|
/// source with the same name does not exist.
|
||
|
|
/// </para>
|
||
|
|
/// </returns>
|
||
|
|
/// <seealso cref='System.Web.UI.Design.IDataSourceProvider'/>
|
||
|
|
public Object GetSelectedDataSource()
|
||
|
|
{
|
||
|
|
Object selectedDataSource = null;
|
||
|
|
|
||
|
|
DataBinding binding = DataBindings[_dataSourcePropertyName];
|
||
|
|
|
||
|
|
if (binding != null)
|
||
|
|
{
|
||
|
|
selectedDataSource =
|
||
|
|
DesignTimeData.GetSelectedDataSource(_selectionList, binding.Expression);
|
||
|
|
}
|
||
|
|
|
||
|
|
return selectedDataSource;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Initializes the designer.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='component'>
|
||
|
|
/// The control element being designed.
|
||
|
|
/// </param>
|
||
|
|
/// <remarks>
|
||
|
|
/// <para>
|
||
|
|
/// This is called by the designer host to establish the component being
|
||
|
|
/// designed.
|
||
|
|
/// </para>
|
||
|
|
/// </remarks>
|
||
|
|
/// <seealso cref='System.ComponentModel.Design.IDesigner'/>
|
||
|
|
public override void Initialize(IComponent component)
|
||
|
|
{
|
||
|
|
Debug.Assert(component is System.Web.UI.MobileControls.SelectionList,
|
||
|
|
"SelectionListDesigner.Initialize - Invalid SelectionList Control");
|
||
|
|
|
||
|
|
_selectionList = (SelectionList) component;
|
||
|
|
base.Initialize(component);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Invokes the property builder beginning with the specified page.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='initialPage'>
|
||
|
|
/// The page to begin with.
|
||
|
|
/// </param>
|
||
|
|
protected internal void InvokePropertyBuilder(int initialPage)
|
||
|
|
{
|
||
|
|
IComponentChangeService changeService = null;
|
||
|
|
bool result = false;
|
||
|
|
|
||
|
|
changeService = (IComponentChangeService)GetService(typeof(IComponentChangeService));
|
||
|
|
if (changeService != null)
|
||
|
|
{
|
||
|
|
try
|
||
|
|
{
|
||
|
|
changeService.OnComponentChanging(_selectionList, null);
|
||
|
|
}
|
||
|
|
catch (CheckoutException ex)
|
||
|
|
{
|
||
|
|
if (ex == CheckoutException.Canceled)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
throw;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
try
|
||
|
|
{
|
||
|
|
SelectionListComponentEditor compEditor = new SelectionListComponentEditor(initialPage);
|
||
|
|
result = compEditor.EditComponent(_selectionList);
|
||
|
|
}
|
||
|
|
finally
|
||
|
|
{
|
||
|
|
if (changeService != null)
|
||
|
|
{
|
||
|
|
changeService.OnComponentChanged(_selectionList, null, null, null);
|
||
|
|
|
||
|
|
if (IMobileWebFormServices != null)
|
||
|
|
{
|
||
|
|
IMobileWebFormServices.ClearUndoStack();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Represents the method that will handle the component change event.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='sender'>
|
||
|
|
/// The source of the event.
|
||
|
|
/// </param>
|
||
|
|
/// <param name=' e'>
|
||
|
|
/// The <see cref='System.ComponentModel.Design.ComponentChangedEventArgs'/> that provides data about the event.
|
||
|
|
/// </param>
|
||
|
|
public override void OnComponentChanged(Object sender, ComponentChangedEventArgs e)
|
||
|
|
{
|
||
|
|
if (e.Member != null)
|
||
|
|
{
|
||
|
|
if (e.Member.Name.Equals(_dataSourcePropertyName) ||
|
||
|
|
e.Member.Name.Equals(_dataMemberPropertyName))
|
||
|
|
{
|
||
|
|
OnDataSourceChanged();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
base.OnComponentChanged(sender, e);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <internalonly/>
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Raises the DataSourceChanged event.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
public void OnDataSourceChanged()
|
||
|
|
{
|
||
|
|
_designTimeDataTable = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Represents the method that will handle the property builder event.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='sender'>
|
||
|
|
/// The source of the event.
|
||
|
|
/// </param>
|
||
|
|
/// <param name=' e'>
|
||
|
|
/// An EventArgs object that provides data about the event.
|
||
|
|
/// </param>
|
||
|
|
protected void OnPropertyBuilder(Object sender, EventArgs e)
|
||
|
|
{
|
||
|
|
InvokePropertyBuilder(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// <para>
|
||
|
|
/// Filter the properties to replace the runtime DataSource property
|
||
|
|
/// descriptor with the designer's.
|
||
|
|
/// </para>
|
||
|
|
/// </summary>
|
||
|
|
/// <param name='properties'>
|
||
|
|
/// The set of properties to filter.
|
||
|
|
/// </param>
|
||
|
|
/// <seealso cref='IDesignerFilter'/>
|
||
|
|
protected override void PreFilterProperties(IDictionary properties)
|
||
|
|
{
|
||
|
|
base.PreFilterProperties(properties);
|
||
|
|
|
||
|
|
Type designerType = this.GetType();
|
||
|
|
|
||
|
|
DesignerAdapterUtil.AddAttributesToPropertiesOfDifferentType(
|
||
|
|
designerType,
|
||
|
|
typeof(String),
|
||
|
|
properties,
|
||
|
|
_dataSourcePropertyName,
|
||
|
|
new TypeConverterAttribute(typeof(DataSourceConverter)));
|
||
|
|
|
||
|
|
DesignerAdapterUtil.AddAttributesToProperty(
|
||
|
|
designerType,
|
||
|
|
properties,
|
||
|
|
_dataMemberPropertyName,
|
||
|
|
_emptyAttrs);
|
||
|
|
|
||
|
|
DesignerAdapterUtil.AddAttributesToProperty(
|
||
|
|
designerType,
|
||
|
|
properties,
|
||
|
|
_dataTextFieldPropertyName,
|
||
|
|
_emptyAttrs);
|
||
|
|
|
||
|
|
DesignerAdapterUtil.AddAttributesToProperty(
|
||
|
|
designerType,
|
||
|
|
properties,
|
||
|
|
_dataValueFieldPropertyName,
|
||
|
|
_emptyAttrs);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|