MSBuild/NuGet Playground

Get All Projects And Manipulate

  <!--
  =====================================================
                               BuildEachTargetFramework
  
  Builds project for each TargetFramework. It is called
  from synthetic projects.
  
  Target _GetTargetFrameworksOutput belongs to
  https://github.com/NuGet/NuGet.Client/blob/c05f9afa9c2fcee7fbe10754521b3f6424bee128/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets#L98  
  =====================================================
  -->
<Target Name="BuildEachTargetFramework2" DependsOnTargets="_GetTargetFrameworksOutput;AssignProjectConfiguration;_SplitProjectReferencesByFileExistence"
          Condition="$(ExecutableProjectFullPath) != ''">

    <MSBuild
      Projects="%(ProjectReferenceWithConfiguration.Identity)"
      Targets="_SetPackedExecutableProjectReferences"
      ContinueOnError="true"
      Properties="ProjectReferenceWithConfigurationIdentity=%(ProjectReferenceWithConfiguration.Identity)">
      <Output TaskParameter="TargetOutputs" ItemName="ProjectReferenceWithConfiguration" />
    </MSBuild>

    <RemoveDuplicates Inputs="@(ProjectReferenceWithConfiguration)" />

    <ItemGroup>
      <ProjectReferenceWithConfiguration Remove="@(ProjectReferenceWithConfiguration)" Condition="%(FullPath) == $(SyntheticProjectFullPath)" />
    </ItemGroup>

    <ItemGroup>
      <ProjectReferenceWithConfiguration Update="@(ProjectReferenceWithConfiguration)">
        <PackExecutableChosenTargetEntry Condition="'%(PackedAsExecutableProjectWontBuilding)' == 'true'">_BuildPackExecutableSpecificNonBuildingProjectReference</PackExecutableChosenTargetEntry>
        <PackExecutableChosenTargetEntry Condition="'%(PackedAsExecutableProjectWontBuilding)' != 'true'">_BuildPackExecutableSpecificProjectReference</PackExecutableChosenTargetEntry>
      </ProjectReferenceWithConfiguration>
    </ItemGroup>

    <MSBuild Projects="$(MSBuildThisFileFullPath)" Targets="%(ProjectReferenceWithConfiguration.PackExecutableChosenTargetEntry)"
             Properties="PackExecutableSpecificProjectReference=%(ProjectReferenceWithConfiguration.FullPath)" />

  </Target>

Get TargetFrameworks of Project

<!--
Uses _GetTargetFrameworksOutput of
https://github.com/NuGet/NuGet.Client/blob/c05f9afa9c2fcee7fbe10754521b3f6424bee128/src/NuGet.Core/NuGet.Build.Tasks.Pack/NuGet.Build.Tasks.Pack.targets#L98
-->
<MSBuild Projects="$(PackExecutableSpecificProjectReference)" Targets="_GetTargetFrameworksOutput">
      <Output TaskParameter="TargetOutputs" ItemName="_TargetFrameworks" />
    </MSBuild>

ItemDefinitionGroup Inheritance

<Project InitialTargets="test">
    <ItemDefinitionGroup>
        <Test>
            <A>a</A>
        </Test>
    </ItemDefinitionGroup>

    <ItemDefinitionGroup>
        <Test>
            <B>b</B>
        </Test>
    </ItemDefinitionGroup>

    <ItemGroup>
        <Test Include="One" />
    </ItemGroup>

    <Target Name="test">
        <Message Text="ID: %(Test.Identity) A: %(Test.A) B: %(Test.B)" Importance="high" />
        <!-- Results in "ID: One A: a B: b". -->
    </Target>
</Project>

Only MSBuild Project Settings

<Project>
  <PropertyGroup>    
    <!--<TargetFramework>netstandard1.0</TargetFramework>-->
    <IncludeBuildOutput>false</IncludeBuildOutput>
    <NoPackageAnalysis>true</NoPackageAnalysis>
    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
    <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
    <EnableDefaultEmbeddedResourceItems>false</EnableDefaultEmbeddedResourceItems>
    <DisableImplicitFrameworkReferences>true</DisableImplicitFrameworkReferences>
  </PropertyGroup>
</Project>