Visual Basic tips/tricks

Global Keyword:
(the following code gives an error because the user defined namespace 'system' does not define Int32, so use the code at bottom to solve the problem)

Namespace mySpace
Namespace system
    Class aBC
      Function getValue() As System.Int32
        Dim n As System.Int32
        Return n
      End Function
    End Class
End Namespace
End Namespace
Namespace mySpace
Namespace system
    Class aBC
      Function getValue() As Global.System.Int32
        Dim n As System.Int32
        Return n
      End Function
    End Class
End Namespace
End Namespace