private static void Main(string[] args)
{
ClassToMakeButtonFor1.RegisterMe();
ClassToMakeButtonFor2.RegisterMe();
Button b = ButtonFactory.MakeMeAButton <ClassToMakeButtonFor1>();
Console.WriteLine(b.Whatever);
b = ButtonFactory.MakeMeAButton <ClassToMakeButtonFor2>();
Console.WriteLine(b.Whatever);
Console.ReadLine();
}