一拖控件就出现master page error

priestmoon 2009-07-14 09:32:29

master page的代码：

site.master



<%@ Master Language="C#" AutoEventWireup="true" CodeFile="site.master.cs" Inherits="site" Debug="true" %>



<!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></title>

    <asp:ContentPlaceHolder id="head" runat="server">

    </asp:ContentPlaceHolder>

</head>

<body>

    <form  runat="server">

        <h1>Wrox United</h1>

        <asp:ContentPlaceHolder id="mainContent" runat="server">

        </asp:ContentPlaceHolder>

        <p>

            All images and content copyright © Wrox Press and its subsidiaries 2006

        </p>

        <p>

            web site designed by <a href="www.qq.com"></a>

        </p>

    </form>

</body>

</html>

采用site.master为母版的web form(自动生成)代码：

about.aspx



<%@ Page Title="" Language="C#" MasterPageFile="~/site.master" AutoEventWireup="true" CodeFile="about.aspx.cs" Inherits="about" %>



<form id="form1" runat="server">



<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="mainContent" Runat="Server">

</asp:Content>

</form>

现在，于about.aspx的design面板下拖一个标准控件Label，
结果报错master page error。
哪里出了问题呢？

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