MSBuild Automatic Sub-File Nesting

README.md

This snippet allows Visual Studio to automatically nest .cs files with a filename "suffix" under parent .cs files.

For example, "MyFile.Partial.cs" would be nested under "MyFile.cs".

Project.csproj

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

	<ItemGroup>
		<NestedItem Include="@(Compile)">
			<Parent>%(Identity)</Parent>
			<Children>%(RelativeDir)%(Filename).*.cs</Children>
		</NestedItem>
	</ItemGroup>

	<ItemGroup>
		<Compile Update="@(NestedItem->'%(Children)')">
			<DependentUpon>%(NestedItem.Parent)</DependentUpon>
		</Compile>
	</ItemGroup>

</Project>