Problem with interface implementation in partial classes

Question

I have a question regarding a problem with L2S, Autogenerated DataContext and the use of Partial Classes. I have abstracted my datacontext and for every table I use, I\'m im

Answer 1

Return types aren't covariant in C#. As you can't change the auto-generated code the only solution I see is to change the interface:

public interface Interface
{
    T Instance { get; }
}

And change your partial class accordingly:

public partial class Class : Interface { }