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//
// System.Web.UI.WebControls.Substitution.cs
//
// Authors:
// Marek Habersack (mhabersack@novell.com)
//
// (C) 2008 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using System;
using System.ComponentModel;
using System.Security.Permissions;
using System.Web;
using System.Web.UI;
namespace System.Web.UI.WebControls
{
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[DefaultProperty ("MethodName")]
[ParseChildren (true)]
[PersistChildren (false)]
[Designer ("System.Web.UI.Design.WebControls.SubstitutionDesigner, " + Consts.AssemblySystem_Design, "System.ComponentModel.Design.IDesigner")]
public class Substitution : Control
{
[DefaultValue ("")]
[WebCategory ("Behavior")]
public virtual string MethodName {
get {
string methodName = ViewState ["MethodName"] as string;
if (String.IsNullOrEmpty (methodName))
return String.Empty;
return methodName;
}
set { ViewState ["MethodName"] = value; }
}
public Substitution ()
{}
protected override ControlCollection CreateControlCollection ()
{
return new EmptyControlCollection (this);
}
[MonoTODO ("Why override?")]
protected internal override void OnPreRender (EventArgs e)
{
base.OnPreRender (e);
}
protected internal override void Render (HtmlTextWriter writer)
{
string method = MethodName;
if (method.Length == 0)
return;
TemplateControl tc = TemplateControl;
if (tc == null)
return;
HttpContext ctx = Context;
HttpResponse resp = ctx != null ? ctx.Response : null;
if (resp == null)
return;
resp.WriteSubstitution (CreateCallback (method, tc));
}
HttpResponseSubstitutionCallback CreateCallback (string method, TemplateControl tc)
{
try {
return Delegate.CreateDelegate (typeof(HttpResponseSubstitutionCallback),
tc.GetType (),
method,
true,
true) as HttpResponseSubstitutionCallback;
} catch (Exception ex) {
throw new HttpException ("Cannot find static method '" + method + "' matching HttpResponseSubstitutionCallback", ex);
}
}
}
}
#endif
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