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 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 #if NET_2_0
  32 using System.Collections;
  33 using System.Collections.Specialized;
  34 using System.Text;
  35
  36 namespace System.Web.UI {
  37         public abstract class DataSourceControl : Control, IDataSource, System.ComponentModel.IListSource {
  38
  39
  40                 protected DataSourceControl()
  41                 {
  42                 }
  43
  44                 protected override ControlCollection CreateControlCollection ()
  45                 {
  46                         return new EmptyControlCollection (this);
  47                 }
  48
  49                 protected virtual DataSourceView GetView (string viewName)
  50                 {
  51                         return null;
  52                 }
  53
  54                 DataSourceView IDataSource.GetView (string viewName)
  55                 {
  56                         return GetView (viewName);
  57                 }
  58
  59                 protected virtual ICollection GetViewNames ()
  60                 {
  61                         return null;
  62                 }
  63
  64                 ICollection IDataSource.GetViewNames ()
  65                 {
  66                         return GetViewNames ();
  67                 }
  68
  69                 IList System.ComponentModel.IListSource.GetList ()
  70                 {
  71                         return ListSourceHelper.GetList (this);
  72                 }
  73
  74                 bool System.ComponentModel.IListSource.ContainsListCollection {
  75                         get { return ListSourceHelper.ContainsListCollection (this); }
  76                 }
  77
  78                 //public override bool EnablePersonalization { get; set; }
  79                 //public override bool EnableTheming { get; set; }
  80                 //public override string SkinID { get; set; }
  81                 public override bool Visible {
  82                         get { return false; }
  83                         set { throw new NotSupportedException (); }
  84                 }
  85
  86                 static object dataSourceChanged = new object ();
  87                 event EventHandler System.Web.UI.IDataSource.DataSourceChanged {
  88                         add { Events.AddHandler (dataSourceChanged, value); }
  89                         remove { Events.RemoveHandler (dataSourceChanged, value); }
  90                 }
  91
  92                 protected virtual void OnDataSourceChanged (EventArgs e)
  93                 {
  94                         EventHandler eh = Events [dataSourceChanged] as EventHandler;
  95                         if (eh != null)
  96                                 eh (this, e);
  97                 }
  98         }
  99 }
 100 #endif
 101