visual-studio Visual Studio 项目：如何仅包含一个配置的参考？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/1493749/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Visual Studio Project: How to include a reference for one configuration only?
提问by Serge Wautier
Env.: VS2008 C# project
环境：VS2008 C#项目
I need to build my app for use in 2 different environments. In one of those environments, I need to use a 3rd party DLL assembly.
我需要构建我的应用程序以在 2 个不同的环境中使用。在其中一种环境中，我需要使用 3rd 方 DLL 程序集。
I could isolate the code that uses this DLL using #if blocks. But how do I conditionally include the reference to the DLL in the CS project file?
我可以使用 #if 块隔离使用此 DLL 的代码。但是我如何有条件地在 CS 项目文件中包含对 DLL 的引用？
Edit: womp has a good point in his comment. I turned into a separate question: Will the referenced DLL be loaded at all if it's never called? TIA,
编辑：womp 在他的评论中有一个很好的观点。我变成了一个单独的问题：如果引用的 DLL 从未被调用过，它会被加载吗？TIA,
回答by Coincoin
Unload the project and open it as .XML
卸载项目并将其作为 .XML 打开
Locate the reference item tag and add a Condition attribute.
找到引用项标记并添加 Condition 属性。
For instance:
例如：
<ItemGroup>
<Reference Include="System.Core">
<RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>
<Reference Include="System.Data" />
<Reference Include="System.Drawing" />
<Reference Include="System.Xml" />
<Reference Include="MyUtilities.Debug"
Condition="'$(Configuration)'=='Debug'"/>
</ItemGroup>
Notice the last reference now has a condition.
请注意，最后一个引用现在具有条件。
回答by Andrew
I know this is an old post, but in case anyone else finds it before they find the answer, like I did, it's this: you need to use the "Choose" element in the project file:
我知道这是一篇旧帖子，但万一其他人在找到答案之前找到了它，就像我所做的那样：您需要使用项目文件中的“选择”元素：
You can define both conditional references and conditional compilation in one place, so you don't have to use #if's in your code.
您可以在一处定义条件引用和条件编译，因此您不必在代码中使用 #if。
It works in SharpDevelop, and since it's MS's documentation I assume it works in Visual Studio.
它适用于 SharpDevelop，而且由于它是 MS 的文档，我假设它适用于 Visual Studio。
回答by cooldrl
The following, in the csproj file references itemgroup works in vs 2008 for me:-
以下，在 csproj 文件中引用 itemgroup 对我来说适用于 vs 2008：-
<Reference Include="DRLClasses, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL" Condition=" '$(Configuration)' == 'Debug' ">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\..\..\..\Visual Studio User Library\Debug\DRLClasses.dll</HintPath>
</Reference>
<Reference Include="DRLClasses, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL" Condition=" '$(Configuration)' == 'Release' ">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\..\..\..\Visual Studio User Library\Release\DRLClasses.dll</HintPath>
</Reference>
回答by Dan W
Inspired by the question and answer shown here, you can add <Choose>and <When Condition>commands around the part you want to be conditionally run. For example:
受此处显示的问题和答案的启发，您可以在要有条件地运行的部分周围添加<Choose>和<When Condition>命令。例如：
<Choose>
<When Condition="$(USEDLL) == true">
<ItemGroup>
<EmbeddedResource Include="test.dll">
<LogicalName>test.dll</LogicalName>
</EmbeddedResource>
</ItemGroup>
</When>
</Choose>
Then in the CLI, simply use the /pproperty in MSBuild like this:
然后在 CLI 中，只需/p像这样使用MSBuild 中的属性：
MSBuild "C:\myproject\myproject.sln" /p:USEDLL=true
...or if you don't want the DLL, simply:
...或者如果您不想要 DLL，只需：
MSBuild "C:\myproject\myproject.sln" /p:USEDLL=false
