2 // System.Web.UI.HierarchicalDataSourceControl
5 // Ben Maurer (bmaurer@users.sourceforge.net)
6 // Lluis Sanchez Gual (lluis@novell.com)
9 // (C) 2005 Novell, Inc (http://www.novell.com)
13 // Permission is hereby granted, free of charge, to any person obtaining
14 // a copy of this software and associated documentation files (the
15 // "Software"), to deal in the Software without restriction, including
16 // without limitation the rights to use, copy, modify, merge, publish,
17 // distribute, sublicense, and/or sell copies of the Software, and to
18 // permit persons to whom the Software is furnished to do so, subject to
19 // the following conditions:
21 // The above copyright notice and this permission notice shall be
22 // included in all copies or substantial portions of the Software.
24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 using System.Collections;
35 using System.Collections.Specialized;
37 using System.ComponentModel;
39 namespace System.Web.UI
41 [NonVisualControlAttribute]
42 [DesignerAttribute ("System.Web.UI.Design.HierarchicalDataSourceDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
43 [ControlBuilderAttribute (typeof(DataSourceControlBuilder))]
44 [BindableAttribute (false)]
45 public abstract class HierarchicalDataSourceControl : Control, IHierarchicalDataSource
47 static object dataSourceChanged = new object ();
49 protected HierarchicalDataSourceControl()
53 protected abstract HierarchicalDataSourceView GetHierarchicalView (string viewPath);
55 HierarchicalDataSourceView IHierarchicalDataSource.GetHierarchicalView (string viewPath)
57 return GetHierarchicalView (viewPath);
61 [DefaultValue (false)]
62 [EditorBrowsable (EditorBrowsableState.Never)]
63 public override bool EnableTheming {
65 set { throw new NotSupportedException (); }
70 [EditorBrowsable (EditorBrowsableState.Never)]
71 public override string SkinID {
72 get { return string.Empty; }
73 set { throw new NotSupportedException (); }
77 [DefaultValue (false)]
78 [EditorBrowsable (EditorBrowsableState.Never)]
79 public override bool Visible {
81 set { throw new NotSupportedException (); }
84 protected override ControlCollection CreateControlCollection ()
86 return new EmptyControlCollection (this);
89 [EditorBrowsable (EditorBrowsableState.Never)]
90 public override Control FindControl (string id)
92 if (id == ID) return this;
96 [EditorBrowsable (EditorBrowsableState.Never)]
97 public override bool HasControls ()
102 [EditorBrowsable (EditorBrowsableState.Never)]
103 public override void Focus ()
105 throw new NotSupportedException ();
108 event EventHandler System.Web.UI.IHierarchicalDataSource.DataSourceChanged {
109 add { Events.AddHandler (dataSourceChanged, value); }
110 remove { Events.RemoveHandler (dataSourceChanged, value); }
113 protected virtual void OnDataSourceChanged (EventArgs e)
115 EventHandler eh = Events [dataSourceChanged] as EventHandler;
120 [EditorBrowsable (EditorBrowsableState.Never)]
121 public override void RenderControl (HtmlTextWriter writer)