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问题描述

我们正在处理一个Web站点项目，并尝试引用System.Data.DataSetExtensions. (使用Web应用程序会更好；但是，技术主管有其原因.)

We're working with a Web Site project and trying to reference System.Data.DataSetExtensions. (Using a Web Application would be better; the technical lead, though, has her reasons.)

这是我们尝试过的:

找到组装路径.
打开Visual Studio命令提示符并运行sn.exe -T "full\path.dll"
基于公钥令牌将以下内容添加到web.config.

web.config> system.web>

web.config > system.web >

<compilation debug="true" targetFramework="4.0">
  <assemblies>
    <!-- Other assemblied omitted -->
    <add assembly="System.Data.DataSetExtensions, 
        Version=4.0.0.0, 
        Culture=neutral, 
        PublicKeyToken=B77A5C561934E089" />
  </assemblies>
</compilation>

完整路径为C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\System.Data.DataSetExtensions.dll

尽管如此，当我们在文件后面的代码中添加using System.Data.DataSetExtensions时，msbuild仍然会抱怨.是什么赋予了?我们该如何解决呢?

Despite this, msbuild still complains when we add using System.Data.DataSetExtensions to a code behind file. What gives? How do we solve this?

简短回答

问题在于我们的using语句.因此，有两个要求.

Short Answer

The problem was our using statement. So, there were two requirements.

参考System.Data.DataSetExtensions. (有关查找完整程序集名称的信息，请参见下文.)
在C#文件中为System.Data添加using语句.

Reference System.Data.DataSetExtensions in the web.config file. (See below for finding the full assembly name.)
Add a using statement for System.Data in the C# file.

问题是我们的using语句用于System.Data.DataSetExtensions.

The problem was that our using statement was for System.Data.DataSetExtensions.

Rick Strahl解释，默认情况下，ASP.NET包括:

Rick Strahl explains that by default ASP.NET includes:

bin路径中的所有程序集
web.config <compilation>部分中的所有基于GAC的程序集引用

all assemblies in the bin path
any GAC-based assembly references in the web.config <compilation> section

此外，我们能够从Visual Studio命令提示符查询GAC，如下所示:

Further, we were able to query to GAC from a Visual Studio Command Prompt as follows:

> gacutil /l System.Data.DataSetExtensions

Microsoft (R) .NET Global Assembly Cache Utility.  Version 4.0.30319.17929
Copyright (c) Microsoft Corporation.  All rights reserved.

The Global Assembly Cache contains the following assemblies:
  System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL
  System.Data.DataSetExtensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL

Number of items = 2

这确认我们想要的程序集在GAC中.它还在web.config文件中列出了需要引用的程序集的全名.

This confirmed that the assembly we wanted was in the GAC. It also listed the full name of the assembly that we needed to reference in the web.config file.

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如何在网站ascx.cs文件中添加对System.Data.DataSetExtensions的引用?

问题描述

推荐答案

简短回答

Short Answer