内容控件必须是内容页面中的顶级控件或引用母版页的嵌套母版页

时间:2012-12-06 14:15:19

标签: c# asp.net master-pages web-content

我想使用嵌套母版页,因此我创建了以下母版页:

<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="test.master.cs" Inherits="DocumentFlowUI.test" MasterPageFile="~/MasterPage2.master" %>

<!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 id="form1" runat="server">
    <div>
        <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
            <asp:Button ID="Button1" runat="server" Text="Button" />
        </asp:ContentPlaceHolder>
    </div>
    </form>
</body>
</html>

并创建以下页面以使用该母版页:

<%@ Page Title="" Language="C#" MasterPageFile="~/test.Master" AutoEventWireup="true" CodeBehind="WebForm4.aspx.cs" Inherits="DocumentFlowUI.WebForm4" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</asp:Content>

我收到以下错误:

  

内容控件必须是内容页面中的顶级控件或   引用母版页的嵌套母版页

2 个答案:

答案 0 :(得分:9)

嵌套母版页中的HTML代码必须使用带有来自&#34; master&#34;的contentplaceholderid的asp:content-tag包装。母版。

答案 1 :(得分:4)

只是为了证明Erik的观点:

父母网页:

<asp:ContentPlaceHolder ID="head" runat="server" />

儿童母版页:

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
    <asp:ContentPlaceHolder ID="head" runat="server" />
</asp:Content>

Page:

<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
    <!-- content -->
</asp:Content>