Message in Chinese (Traditional) (中文(繁體))
        IAsyncResult 的 State 必須是傳入 Begin 呼叫的狀態引數。
Unlocalized message
        IAsyncResult's State must be the state argument passed to your Begin call.
Search by Google
IAsyncResult 的 State 必須是傳入 Begin 呼叫的狀態引數。

IAsyncResult's State must be the state argument passed to your Begin call.
Search by Google