1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
//------------------------------------------------------------------------------
// <copyright file="HierarchicalDataSourceControl.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI {
using System.ComponentModel;
using System.Security.Permissions;
[
Bindable(false),
ControlBuilder(typeof(DataSourceControlBuilder)),
Designer("System.Web.UI.Design.HierarchicalDataSourceDesigner, " + AssemblyRef.SystemDesign),
NonVisualControl()
]
public abstract class HierarchicalDataSourceControl : Control, IHierarchicalDataSource {
private static readonly object EventDataSourceChanged = new object();
[
Browsable(false),
EditorBrowsable(EditorBrowsableState.Never),
]
public override string ClientID {
get {
return base.ClientID;
}
}
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
EditorBrowsable(EditorBrowsableState.Never)
]
public override ClientIDMode ClientIDMode {
get {
return base.ClientIDMode;
}
set {
throw new NotSupportedException();
}
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override ControlCollection Controls {
get {
return base.Controls;
}
}
[
Browsable(false),
DefaultValue(false),
EditorBrowsable(EditorBrowsableState.Never),
]
public override bool EnableTheming {
get {
return false;
}
set {
throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name));
}
}
[
Browsable(false),
DefaultValue(""),
EditorBrowsable(EditorBrowsableState.Never),
]
public override string SkinID {
get {
return String.Empty;
}
set {
throw new NotSupportedException(SR.GetString(SR.NoThemingSupport, this.GetType().Name));
}
}
/// <summary>
/// Gets or sets a value that indicates whether a control should be rendered on
/// the page.
/// </summary>
[
Browsable(false),
DefaultValue(false),
EditorBrowsable(EditorBrowsableState.Never),
]
public override bool Visible {
get {
return false;
}
set {
throw new NotSupportedException(SR.GetString(SR.ControlNonVisual, this.GetType().Name));
}
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override void ApplyStyleSheetSkin(Page page) {
base.ApplyStyleSheetSkin(page);
}
/// <devdoc>
/// Overidden to prevent child controls from being added to this control.
/// </devdoc>
protected override ControlCollection CreateControlCollection() {
return new EmptyControlCollection(this);
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override Control FindControl(string id) {
return base.FindControl(id);
}
/// <devdoc>
/// </devdoc>
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override void Focus() {
throw new NotSupportedException(SR.GetString(SR.NoFocusSupport, this.GetType().Name));
}
protected abstract HierarchicalDataSourceView GetHierarchicalView(string viewPath);
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override bool HasControls() {
return base.HasControls();
}
protected virtual void OnDataSourceChanged(EventArgs e) {
EventHandler onDataSourceChangedHandler = (EventHandler)Events[EventDataSourceChanged];
if (onDataSourceChangedHandler != null)
onDataSourceChangedHandler(this, e);
}
[
EditorBrowsable(EditorBrowsableState.Never),
]
public override void RenderControl(HtmlTextWriter writer) {
base.RenderControl(writer);
}
#region Implementation of IHierarchicalDataSource
/// <summary>
/// Raised when the underlying data source has changed. The
/// change may be due to a change in the control's properties,
/// or a change in the data due to an edit action performed by
/// the DataSourceControl.
/// </summary>
event EventHandler IHierarchicalDataSource.DataSourceChanged {
add {
Events.AddHandler(EventDataSourceChanged, value);
}
remove {
Events.RemoveHandler(EventDataSourceChanged, value);
}
}
/// <internalonly/>
HierarchicalDataSourceView IHierarchicalDataSource.GetHierarchicalView(string viewPath) {
return GetHierarchicalView(viewPath);
}
#endregion
}
}
|
