定义自定义控件：
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl1.ascx.cs" Inherits="TemplateTest.WebUserControl1" %> <asp:Label ID="Author_Label" runat="server" Text="Author:"></asp:Label> <br /> <asp:Label ID="Author_Value" runat="server" Text="Value:"></asp:Label> <h1>This is atitle</h1>
调用：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="TemplateTest.WebForm1" %> <%@ Register TagPrefix="UC" TagName="Author" Src="WebUserControl1.ascx" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <UC:Author runat="server" ID="author" /> </div> </form> </body> </html>