Материал из .Net Framework эксперт
<%@ Page Language="C#" AutoEventWireup="true" %>
<%@ Register Src="Control.ascx" TagName="Header" TagPrefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:Header id="Header1" runat="server">
</uc1:Header></div>
<br />
[ Page Content ]
</form>
</body>
</html>
File: Control.ascx
<%@ Control Language="C#" AutoEventWireup="true" %>
<table width="100%" border="0" bgcolor="blue">
<tr>
<td><font face="Verdana,Arial" size="6" color="yellow"><b>
User Control Test Page</b></font>
</td>
</tr>
<tr>
<td align="right"><font size="3" color="white"><b>
An Apress Creation ?2005</b></font>
</td>
</tr>
</table>
