C# 如何在CSP项目重建条件下设置参数

C# 如何在CSP项目重建条件下设置参数,c#,msbuild,C#,Msbuild,我只想在重建项目时启用UseCommonOutputDirectory。目前,我的csProj文件是: <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFramework>net5.0</TargetFramework> <GenerateAssemblyInfo>false</GenerateAssemblyInfo>

我只想在重建项目时启用UseCommonOutputDirectory。目前,我的csProj文件是:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net5.0</TargetFramework>
    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
    <OutputType>Library</OutputType>
    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
    <OutputPath>..\Output\$(Configuration)\MyProject\Demo\</OutputPath>
    <UseCommonOutputDirectory Condition="'$(BuildMode)' == 'Rebuild'">true</UseCommonOutputDirectory>
  </PropertyGroup>
  <ItemGroup>
    <ProjectReference Include="..\MyProject.Model\MyProject.Model.csproj" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
    <PackageReference Include="NUnit" Version="3.13.1" />
  </ItemGroup>
</Project>

net5.0
假的
图书馆
假的
..\Output\$(配置)\MyProject\Demo\
真的
但它不起作用。我怎样才能解决这个问题