Message in Chinese (Traditional) (中文(繁體))
        進入點傳回 null 值。傳回值必須是非 null 的 IAsyncResult 執行個體。
Unlocalized message
        The entry point returned a null value. The return value must be a non-null IAsyncResult instance.
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進入點傳回 null 值。傳回值必須是非 null 的 IAsyncResult 執行個體。

The entry point returned a null value. The return value must be a non-null IAsyncResult instance.
Search by Google