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DataSourceControl.cs 2.8 KB

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  1. //
  2. // System.Web.UI.DataSourceControl
  3. //
  4. // Authors:
  5. // Ben Maurer ([email protected])
  6. //
  7. // (C) 2003 Ben Maurer
  8. //
  9. //
  10. // Permission is hereby granted, free of charge, to any person obtaining
  11. // a copy of this software and associated documentation files (the
  12. // "Software"), to deal in the Software without restriction, including
  13. // without limitation the rights to use, copy, modify, merge, publish,
  14. // distribute, sublicense, and/or sell copies of the Software, and to
  15. // permit persons to whom the Software is furnished to do so, subject to
  16. // the following conditions:
  17. //
  18. // The above copyright notice and this permission notice shall be
  19. // included in all copies or substantial portions of the Software.
  20. //
  21. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22. // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23. // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24. // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25. // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26. // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27. // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28. //
  29. #if NET_2_0
  30. using System.Collections;
  31. using System.Collections.Specialized;
  32. using System.Text;
  33. namespace System.Web.UI {
  34. public abstract class DataSourceControl : Control, IDataSource, System.ComponentModel.IListSource {
  35. protected DataSourceControl()
  36. {
  37. }
  38. protected override ControlCollection CreateControlCollection ()
  39. {
  40. return new EmptyControlCollection (this);
  41. }
  42. protected virtual DataSourceView GetView (string viewName)
  43. {
  44. return null;
  45. }
  46. DataSourceView IDataSource.GetView (string viewName)
  47. {
  48. return GetView (viewName);
  49. }
  50. protected virtual ICollection GetViewNames ()
  51. {
  52. return null;
  53. }
  54. ICollection IDataSource.GetViewNames ()
  55. {
  56. return GetViewNames ();
  57. }
  58. IList System.ComponentModel.IListSource.GetList ()
  59. {
  60. return ListSourceHelper.GetList (this);
  61. }
  62. bool System.ComponentModel.IListSource.ContainsListCollection {
  63. get { return ListSourceHelper.ContainsListCollection (this); }
  64. }
  65. //public override bool EnablePersonalization { get; set; }
  66. //public override bool EnableTheming { get; set; }
  67. //public override string SkinID { get; set; }
  68. public override bool Visible {
  69. get { return false; }
  70. set { throw new NotSupportedException (); }
  71. }
  72. static object dataSourceChanged = new object ();
  73. event EventHandler System.Web.UI.IDataSource.DataSourceChanged {
  74. add { Events.AddHandler (dataSourceChanged, value); }
  75. remove { Events.RemoveHandler (dataSourceChanged, value); }
  76. }
  77. protected virtual void OnDataSourceChanged (EventArgs e)
  78. {
  79. EventHandler eh = Events [dataSourceChanged] as EventHandler;
  80. if (eh != null)
  81. eh (this, e);
  82. }
  83. }
  84. }
  85. #endif