Message in Chinese (Simplified) (中文(简体))
传入异步回调的 IAsyncResult 没有有效的 AsyncState。
Unlocalized message
The IAsyncResult passed into the async callback does not have a valid AsyncState.
Search by Google传入异步回调的 IAsyncResult 没有有效的 AsyncState。
The IAsyncResult passed into the async callback does not have a valid AsyncState.
Search by Google