How to find all the classes which implement a given interface?

Question

Under a given namespace, I have a set of classes which implement an interface. Let\'s call it ISomething. I have another class (let\'s call it CClass

Answer 1

A example using Linq:

var types =
  myAssembly.GetTypes()
            .Where(m => m.IsClass && m.GetInterface("IMyInterface") != null);