C# Check if a method exists in TDD [duplicate]

Question

In Java I can check if a method named "addNumbers" exists in a class "Calculate" by doing this:

Class<?> c = Class.forName("com.example.package.Calculate");
Method m = c.getMethod("addNumbers", int.class, int.class);
m.invoke(5,7)

What is the C# equivalent for this example?