Code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Register.aspx.cs" Inherits="Register" %>
<%@ Register Assembly="WebValidates" Namespace="WebValidates" TagPrefix="cc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
</head>
<body>
<asp:ScriptManager ID="ScriptManager" runat="server">
</asp:ScriptManager>
<form id="form1" runat="server">
<div>
<asp:UpdatePanel ID="UpdatePanel" runat="server" UpdateMode="Always">
<ContentTemplate>
<table>
<tr>
<td><asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<cc1:SerialNumber ID="SerialNumber2" runat="server">
</cc1:SerialNumber>
</td>
</tr>
</table>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
这个页面报“创建控件时出错”，找不出原因，请高手指点
