Page.AsyncPageBeginProcessRequest(HttpContext, AsyncCallback, Object) Page.AsyncPageBeginProcessRequest(HttpContext, AsyncCallback, Object) Page.AsyncPageBeginProcessRequest(HttpContext, AsyncCallback, Object) Page.AsyncPageBeginProcessRequest(HttpContext, AsyncCallback, Object) Method

定義

開始處理非同步頁面要求。Begins processing an asynchronous page request.

protected:
 IAsyncResult ^ AsyncPageBeginProcessRequest(System::Web::HttpContext ^ context, AsyncCallback ^ callback, System::Object ^ extraData);
protected IAsyncResult AsyncPageBeginProcessRequest (System.Web.HttpContext context, AsyncCallback callback, object extraData);
member this.AsyncPageBeginProcessRequest : System.Web.HttpContext * AsyncCallback * obj -> IAsyncResult
Protected Function AsyncPageBeginProcessRequest (context As HttpContext, callback As AsyncCallback, extraData As Object) As IAsyncResult

參數

context
HttpContext HttpContext HttpContext HttpContext

用於要求的 HttpContextThe HttpContext for the request.

callback
AsyncCallback AsyncCallback AsyncCallback AsyncCallback

當完成處理時,要告知的回呼方法。The callback method to notify when the process is complete.

extraData
Object Object Object Object

非同步方法的狀態資料。State data for the asynchronous method.

傳回

IAsyncResult,參考非同步要求。An IAsyncResult that references the asynchronous request.

適用於