How are references to Visual Basic 6.0 Enum Values upgraded?
Upgrading code that refers to any predefined Visual Basic 6.0 enumerator values requires special care. The upgrade wizard may replace the enumerator reference with a new object in Visual Basic .NET that represents the same value, but it is not a simple enumerator value. In some cases, you may encounter a compiler error when upgrading code that references Visual Basic 6.0 predefined enumerator values. For example, because the declarations for some color objects are initialized with values that are not constants, literals, or enumerations, each line results in the compiler error “Constant expression is required.” To fix these issues, you can define your own constant values and replace the use of the Visual Basic .NET property for each enumerator with your constants, or alternatively, you can use nonconstant values directly.
