Exit Prompt (2 Different Ways) - VB#19

Code:
Method One (Would you like to exit with two buttons):

Dim result as msgboxresult = msgbox("Are you sure you would like to exit?", vbyesno)
Select Case result
   Case vbYes
      end
   Case vbNo
      e.cancel=true
End Select

Method Two (Would you like to save with three buttons):

Dim result as msgboxresult = msgbox("Are you sure you would like to save before exiting?", vbyesnocancel)
Select Case result
   Case vbYes
      'Your saving code here
      end
   Case vbNo
      end
   Case vbCancel
      e.cancel=true
End Select