mcs/class/System.Web/System.Web.UI/DataSourceControl.cs

   1 //
   2 // System.Web.UI.DataSourceControl
   3 //
   4 // Authors:
   5 //      Ben Maurer (bmaurer@users.sourceforge.net)
   6 //
   7 // (C) 2003 Ben Maurer
   8 //
   9
  10 #if NET_2_0
  11 using System.Collections;
  12 using System.Collections.Specialized;
  13 using System.Text;
  14
  15 namespace System.Web.UI {
  16         public abstract class DataSourceControl : Control, IDataSource, System.ComponentModel.IListSource {
  17
  18
  19                 protected DataSourceControl()
  20                 {
  21                 }
  22
  23                 protected override ControlCollection CreateControlCollection ()
  24                 {
  25                         return new EmptyControlCollection (this);
  26                 }
  27
  28                 protected virtual DataSourceView GetView (string viewName)
  29                 {
  30                         return null;
  31                 }
  32
  33                 DataSourceView IDataSource.GetView (string viewName)
  34                 {
  35                         return GetView (viewName);
  36                 }
  37
  38                 protected virtual ICollection GetViewNames ()
  39                 {
  40                         return null;
  41                 }
  42
  43                 ICollection IDataSource.GetViewNames ()
  44                 {
  45                         return GetViewNames ();
  46                 }
  47
  48                 IList System.ComponentModel.IListSource.GetList ()
  49                 {
  50                         return ListSourceHelper.GetList (this);
  51                 }
  52
  53                 bool System.ComponentModel.IListSource.ContainsListCollection {
  54                         get { return ListSourceHelper.ContainsListCollection (this); }
  55                 }
  56
  57                 //public override bool EnablePersonalization { get; set; }
  58                 //public override bool EnableTheming { get; set; }
  59                 //public override string SkinID { get; set; }
  60                 public override bool Visible {
  61                         get { return false; }
  62                         set { throw new NotSupportedException (); }
  63                 }
  64
  65                 static object dataSourceChanged = new object ();
  66                 event EventHandler System.Web.UI.IDataSource.DataSourceChanged {
  67                         add { Events.AddHandler (dataSourceChanged, value); }
  68                         remove { Events.RemoveHandler (dataSourceChanged, value); }
  69                 }
  70
  71                 protected virtual void OnDataSourceChanged (EventArgs e)
  72                 {
  73                         EventHandler eh = Events [dataSourceChanged] as EventHandler;
  74                         if (eh != null)
  75                                 eh (this, e);
  76                 }
  77         }
  78 }
  79 #endif
  80