Invalid Cast Exceptions with Implicit Operators

   
 


public class TestClass
{
    private MainClass MyMainClassObject;
   
    public TestClass()
    {
        MyMainClassObject = new MainClass();
    }
   
    public static implicit operator MainClass(TestClass Source)
    {
        return Source.MyMainClassObject;
    }
}
   
public class MainClass
{
    public static void Main()
    {
        object MyObject;
        MainClass MyMainClassObject;
   
        MyObject = new TestClass();
        MyMainClassObject = (MainClass)MyObject;
    }
}