WorkflowInstance.OnBeginPersist(AsyncCallback, Object) 方法

定義

命名空間:

System.Activities.Hosting

組件:

System.Activities.dll

要求主機保留工作流程的非同步呼叫。

protected public:
 abstract IAsyncResult ^ OnBeginPersist(AsyncCallback ^ callback, System::Object ^ state);

protected internal abstract IAsyncResult OnBeginPersist (AsyncCallback callback, object state);

abstract member OnBeginPersist : AsyncCallback * obj -> IAsyncResult

Protected Friend MustOverride Function OnBeginPersist (callback As AsyncCallback, state As Object) As IAsyncResult

參數

callback

AsyncCallback

保留作業完成時要呼叫的方法。

state

Object

選擇性的應用程式特定物件，其中包含非同步作業的相關資訊。

傳回

IAsyncResult

目前保留作業的參考。