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<%@ Page Language="C#" %>
<%@ Register Assembly="WebControlLibrary1" Namespace="WebControlLibrary1"
TagPrefix="cc1" %>
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
this.TemplatedControl1.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Templated Web Controls</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<cc1:TemplatedControl Name="John Doe" Text="Hello World!"
ID=" TemplatedControl1" runat="server">
<MessageTemplate>The user '<%# Container.Name %>'
has a message for you: <br />"<%#Container.Text%>"
</MessageTemplate>
</cc1:TemplatedControl>
</div>
</form>
</body>
</html>
File: TemplatedControl.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace WebControlLibrary1
{
[DefaultProperty("Text")]
[ToolboxData("<{0}:TemplatedControl runat=server></{0}: TemplatedControl >")]
public class TemplatedControl : WebControl
{
private string _name;
private string _text;
private Message _message;
private ITemplate _messageTemplate;
[Browsable(false)]
public Message Message
{
get
{
EnsureChildControls();
return _message;
}
}
[PersistenceMode(PersistenceMode.InnerProperty)]
[TemplateContainer(typeof(Message))]
public virtual ITemplate MessageTemplate
{
get { return _messageTemplate; }
set { _messageTemplate = value; }
}
[Bindable(true)]
[DefaultValue("")]
public string Name
{
get { return _name; }
set { _name = value; }
}
[Bindable(true)]
[DefaultValue("")]
public string Text
{
get { return _text; }
set { _text = value; }
}
public override void DataBind()
{
CreateChildControls();
ChildControlsCreated = true;
base.DataBind();
}
protected override void CreateChildControls()
{
this.Controls.Clear();
_message = new Message(Name, Text);
ITemplate template = MessageTemplate;
template.InstantiateIn(_message);
Controls.Add(_message);
}
}
}
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