106 lines
3.3 KiB
C#
106 lines
3.3 KiB
C#
//
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// System.Web.UI.WebControls.Substitution.cs
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//
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// Authors:
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// Marek Habersack (mhabersack@novell.com)
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//
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// (C) 2008 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel;
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using System.Security.Permissions;
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using System.Web;
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using System.Web.UI;
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namespace System.Web.UI.WebControls
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{
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[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[DefaultProperty ("MethodName")]
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[ParseChildren (true)]
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[PersistChildren (false)]
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[Designer ("System.Web.UI.Design.WebControls.SubstitutionDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
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public class Substitution : Control
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{
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[DefaultValue ("")]
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[WebCategory ("Behavior")]
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public virtual string MethodName {
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get {
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string methodName = ViewState ["MethodName"] as string;
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if (String.IsNullOrEmpty (methodName))
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return String.Empty;
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return methodName;
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}
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set { ViewState ["MethodName"] = value; }
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}
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public Substitution ()
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{}
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protected override ControlCollection CreateControlCollection ()
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{
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return new EmptyControlCollection (this);
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}
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[MonoTODO ("Why override?")]
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protected internal override void OnPreRender (EventArgs e)
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{
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base.OnPreRender (e);
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}
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protected internal override void Render (HtmlTextWriter writer)
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{
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string method = MethodName;
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if (method.Length == 0)
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return;
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TemplateControl tc = TemplateControl;
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if (tc == null)
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return;
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HttpContext ctx = Context;
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HttpResponse resp = ctx != null ? ctx.Response : null;
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if (resp == null)
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return;
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resp.WriteSubstitution (CreateCallback (method, tc));
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}
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HttpResponseSubstitutionCallback CreateCallback (string method, TemplateControl tc)
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{
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try {
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return Delegate.CreateDelegate (typeof(HttpResponseSubstitutionCallback),
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tc.GetType (),
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method,
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true,
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true) as HttpResponseSubstitutionCallback;
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} catch (Exception ex) {
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throw new HttpException ("Cannot find static method '" + method + "' matching HttpResponseSubstitutionCallback", ex);
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}
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}
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}
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}
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