判斷枚舉值是否存在

利用枚舉的IsDefined方法。

 

例：

Public Enum ControlState<br /> OpenCamcorder<br /> CloseCamcorder<br /> StartCapture<br /> EndCapture<br />End Enum</p><p>Private Function IsXXX(ByVal state As ControlState) As Boolean</p><p> If ControlState.IsDefined(GetType(ControlState), state) = False Then<br /> Return False<br /> Else<br /> Return True<br /> End If</p><p>End Function<br />