Conversion operators cannot convert from a type to its derived type
A conversion operator is declared with a return type that derives from the parameter type.
At compile time, Visual Basic considers a predefined conversion to exist from any reference type to any type in its inheritance hierarchy, that is, any type from which it derives or which derives from it. Such a conversion might fail at run time, but the compiler cannot predict run-time results, so it allows any such conversion to compile.
Because the compiler considers this conversion to be already defined, it does not allow you to redefine it.
Error ID: BC33027
To correct this error
- Remove this operator definition entirely. It is already predefined.
See Also
Tasks
How to: Define a Conversion Operator