Debug-only classes and resources in visual studio - is it possible?

Question

Is it possible to add a class to a project in Visual Studio and have that class only built for the Debug configuration of the project? That is, it will not appear in the Rel

Answer 1

As for the resources, you indeed need to modify *.csproj by hand, changing

  AdmittanceChart.cs
  Designer

to

  AdmittanceChart.cs
  Designer

but, as Jon suggested it's not necessarily good practice.