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<specifier1> <type> cannot inherit from a <specifier2> <type> because it expands the access of the base <type>

  • Article

You have attempted to have a public class inherit from a base class marked Private or Friend.

Error ID: BC30509

To correct this error

  • Declare the base class Public or declare the inheriting class Private or Friend.

See Also

Other Resources

Inheritance in Visual Basic