[疑问]继承Page报错

AdminPage.cs

using System;
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using System.Data;
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using System.Configuration;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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namespace SecondaryBookShop
11

index.aspx

using System;
2 [疑问]继承Page报错

using System.Data;
3 [疑问]继承Page报错

using System.Configuration;
4 [疑问]继承Page报错

using System.Collections;
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using System.Web;
6 [疑问]继承Page报错

using System.Web.Security;
7 [疑问]继承Page报错

using System.Web.UI;
8 [疑问]继承Page报错

using System.Web.UI.WebControls;
9 [疑问]继承Page报错

using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
11 [疑问]继承Page报错

namespace SecondaryBookShop.Admin
12

编译报错:

“/”应用程序中的服务器错误。 分析器错误 说明: 在分析向此请求提供服务所需资源时出错。请检查下列特定分析错误详细信息并适当地修改源文件。

分析器错误信息: “SecondaryBookShop.Admin.index”不扩展类“System.Web.UI.Page”，因此此处不允许。

源错误:

行 1: <%@ Page language="c#" AutoEventWireup="true" CodeBehind="index.aspx.cs" Inherits="SecondaryBookShop.Admin.index" %>行 2: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">行 3: <html xmlns="http://www.w3.org/1999/xhtml" >

源文件: /Admin/index.aspx 行: 1

版本信息: Microsoft .NET Framework 版本:2.0.50727.42; ASP.NET 版本:2.0.50727.42