What's really annoying about the IsNot operator is that it's not consistent with TypeOf ... Is. In other words, you can't do this: If TypeOf obj IsNot MyCl

What's really annoying about the IsNot operator is that it's not consistent with TypeOf ... Is. In other words, you can't do this: If TypeOf obj IsNot MyClass Then ' ... Instead you have to do: If Not TypeOf obj Is MyClass Then ' ...