Is possible to point that the type used for a generic method, should be an interface?

Question

Here is my generic method code:

  public static IT Activate<IT>(string path)
  {
        //some code here....
  }

I'd want to set that generic IT must be only an interface.

Is this possible?

Answer 1

No, there's no such constraint in C#, or in .NET generics in general. You'd have to check at execution time.

if (!typeof(IT).IsInterface)
{
    // Presumably throw an exception
}