StreamUpgradeInitiator.BeginInitiateUpgrade 方法

定義

命名空間:

System.ServiceModel.Channels

組件:

System.ServiceModel.dll

這個 abstract 方法可以實作，以執行可啟始升級的非同步處理。

public:
 abstract IAsyncResult ^ BeginInitiateUpgrade(System::IO::Stream ^ stream, AsyncCallback ^ callback, System::Object ^ state);

public abstract IAsyncResult BeginInitiateUpgrade (System.IO.Stream stream, AsyncCallback callback, object state);

abstract member BeginInitiateUpgrade : System.IO.Stream * AsyncCallback * obj -> IAsyncResult

Public MustOverride Function BeginInitiateUpgrade (stream As Stream, callback As AsyncCallback, state As Object) As IAsyncResult

參數

stream

Stream

要升級的資料流。

callback

AsyncCallback

當 InitiateUpgrade(Stream) 已經完成時，所要呼叫的方法。

state

Object

有關非同步呼叫狀態的狀態資訊。

傳回

IAsyncResult

傳回要傳入 IAsyncResult 方法中的 EndInitiateUpgrade(IAsyncResult)。

備註

這個方法會呼叫 InitiateUpgrade 並傳回。