How to check if a class implements an interface without navigating through its inheritance tree?

Question

If I want to know if a class inherits IDisposable I have to Go To Definition in each of its parent classes and interfaces?

Isn't there an easier way?

Answer 1

Put an instance of the class in question in a using statement. The compiler will tell you if it is possible with that class or not.

Answer 2

Idisposible Temp = class as Idisposible

If(temp== null) { //Do nothing

}

Answer 3

bool implementsIDisposable = (classInstance is IDisposable);

Answer 4

If you have resharper installed, you can use type hierarchy (Crl + E, H) to view it quickly.