Message in Chinese (Traditional) (中文（繁體）)
就非同步方法呼叫而言，當您呼叫 End 方法時，必須提供非 Null 值的 IAsyncResult 執行個體。
Unlocalized message
For asynchronous method calls, you must supply a non-null IAsyncResult instance when you call the End method.
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