Inside .csproj files Visual Studio and Xamarin Studio as default keep a reference to every file used inside the project.

<ItemGroup>
    <Compile Include="Utils\Foo1Utils.cs" />
    <Compile Include="Utils\Foo2Utils.cs" />
    <Compile Include="Services\FooService.cs" />
    ...
</ItemGroup>

To avoid conflicts on csproj files inside our solution at every file addition, we started to use wildcards:

<ItemGroup>
    <Compile Include="Utils\*.cs" />
    <Compile Include="Services\*.cs" />
    ...
</ItemGroup>

The problem is that apparently both on Visual Studio and Xamarin Studio is not possible to "explain" to the IDE that we are using wildcards, and when we add a new file to the project they add a new reference to the file ignoring the wildcard *.cs on the folder. It's still a good solution because we don't need to commit our .csproj at every file addition, but now we have to reset them each time... anyone knows if there is a solution?

EDIT: with Rider (JetBrains) there isn't this problem, if in the csproj there is a wildcard and I add a new file everything works fine.