Question

I have two classes, Class A and Class B. These both classes are lying in two different namespaces.
I call a static method of Class B from Class A, then how can I get complete information of Class A and its namespace in called static method of Class B?

I do not want to add any code in class A
But can add anything into class B.

Answer 1

You should use the GetType() method on your A object.

namespace nmspA {
    public class A{
        private void DoSomething(){
            B.Foo(this);
        }
    }
}

namespace nmspB {
    public class B {
        public static void Foo(A a){
            Debug.Write(a.GetType()); // Will write : "nmspA.A"
        }
    }
}