[SOLVED] How to reference an item in an ItemGroup based on the Label attribute?

How to reference an item in an ItemGroup based on the Label attribute?

In my cpp project file I have an item group defined as such:

<ItemGroup>
<None Include="file1.dll" Label="Release Version"/>
<None Include="file2.dll" Label="Debug Version"/>
</ItemGroup>

I have an AfterBuild target whereby I want to copy the above files into different locations based on the label attribute of the item. For example:

<Target Name="AfterBuild">
<Copy SourceFiles="@(None)" DestinationFiles="$(ReleaseLocation)" Condition="'%(None.Label)'=='Release Version'" ContinueOnError="false" />
</Target>

However this doesn't work (nothing is copied). How do I reference the Label attribute in my Copy command?

Solution

You cannot filter items based on Label attribute, but you can filter based on item's metadata. E.g.:

<ItemGroup>
  <None Include="file1.dll">
   <Label>Release Version</Label>
  </None>
  <None Include="file2.dll">
    <Label>Debug Version</Label>
  </None>
</ItemGroup>

<Target Name="AfterBuild">
  <ItemGroup>
    <_RetailContent Include="@(None)" Condition="%(Label) == 'Release Version'" />
  </ItemGroup>
  <Copy SourceFiles="@(_RetailContent)" DestinationFolder="$(ReleaseLocation)" ContinueOnError="false" />
</Target>