2 // System.Web.UI.HtmlControls.HtmlContainerControl.cs
5 // Bob Smith <bob@thestuff.net>
6 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
9 // (c) 2002 Ximian, Inc. (http://www.ximian.com)
10 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.ComponentModel;
33 using System.Security.Permissions;
36 //LAMESPEC: The dox talk about HttpException but are very ambigious.
37 //TODO: Check to see if Render really is overridden instead of a LiteralControl being added. It apears that this is the
38 //case due to testing. Anything inside the block is overwritten by the content of this control, so it doesnt apear
39 //to do anything with children.
41 //TODO: If Test.InnerText = Test.InnerHtml without ever assigning anything into InnerHtml, you get this:
42 // Exception Details: System.Web.HttpException: Cannot get inner content of Message because the contents are not literal.
43 //[HttpException (0x80004005): Cannot get inner content of Message because the contents are not literal.]
44 // System.Web.UI.HtmlControls.HtmlContainerControl.get_InnerHtml() +278
45 // ASP.test3_aspx.AnchorBtn_Click(Object Source, EventArgs E) in \\genfs2\www24\bobsmith11\test3.aspx:6
46 // System.Web.UI.HtmlControls.HtmlAnchor.OnServerClick(EventArgs e) +108
47 // System.Web.UI.HtmlControls.HtmlAnchor.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +26
48 // System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
49 // System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +149
50 // System.Web.UI.Page.ProcessRequestMain() +660
53 namespace System.Web.UI.HtmlControls
56 [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
57 [AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
58 public abstract class HtmlContainerControl : HtmlControl {
65 HtmlContainerControl () : this ("span") {}
67 public HtmlContainerControl (string tag) : base(tag) {}
69 [HtmlControlPersistable (false)]
70 [BrowsableAttribute(false)]
71 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
72 public virtual string InnerHtml
75 if (Controls.Count == 0)
78 bool is_literal = true;
79 StringBuilder text = new StringBuilder ();
80 foreach (Control ctrl in Controls) {
81 LiteralControl lc = ctrl as LiteralControl;
86 text.Append (lc.Text);
90 throw new HttpException ("There is no literal content!");
92 return text.ToString ();
97 Controls.Add (new LiteralControl (value));
99 ViewState.Remove ("innerhtml");
101 ViewState ["innerhtml"] = value;
105 [HtmlControlPersistable (false)]
106 [BrowsableAttribute(false)]
107 [DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden)]
108 public virtual string InnerText
111 return HttpUtility.HtmlDecode (InnerHtml);
115 InnerHtml = HttpUtility.HtmlEncode (value);
124 override void Render (HtmlTextWriter writer)
126 RenderBeginTag (writer);
127 RenderChildren (writer);
128 RenderEndTag (writer);
131 protected virtual void RenderEndTag (HtmlTextWriter writer)
133 writer.WriteEndTag (TagName);
136 protected override void RenderAttributes (HtmlTextWriter writer)
138 ViewState.Remove ("innerhtml");
139 base.RenderAttributes (writer);
142 /* we need to override this because our base class
143 * (HtmlControl) returns an instance of
144 * EmptyControlCollection. */
145 protected override ControlCollection CreateControlCollection ()
147 return new ControlCollection (this);
150 protected override void LoadViewState (object savedState)
152 if (savedState != null) {
153 base.LoadViewState (savedState);
154 string inner = ViewState ["innerhtml"] as string;