コード例 #1
0
 protected IAsyncResult AsyncPageBeginProcessRequest(HttpContext context, AsyncCallback callback, object extraData)
 {
     this.SetIntrinsics(context, true);
     if (this._asyncInfo == null)
     {
         this._asyncInfo = new PageAsyncInfo(this);
     }
     this._asyncInfo.AsyncResult = new HttpAsyncResult(callback, extraData);
     this._asyncInfo.CallerIsBlocking = callback == null;
     try
     {
         this._context.InvokeCancellableCallback(new WaitCallback(this.AsyncPageProcessRequestBeforeAsyncPointCancellableCallback), null);
     }
     catch (Exception exception)
     {
         if (this._context.SyncContext.PendingOperationsCount == 0)
         {
             throw;
         }
         this._asyncInfo.SetError(exception);
     }
     if ((this._asyncTaskManager != null) && !this._asyncInfo.CallerIsBlocking)
     {
         this._asyncTaskManager.RegisterHandlersForPagePreRenderCompleteAsync();
     }
     this._asyncInfo.AsyncPointReached = true;
     this._context.SyncContext.Disable();
     this._asyncInfo.CallHandlers(true);
     return this._asyncInfo.AsyncResult;
 }
コード例 #2
0
 public void AddOnPreRenderCompleteAsync(BeginEventHandler beginHandler, EndEventHandler endHandler, object state)
 {
     if (beginHandler == null)
     {
         throw new ArgumentNullException("beginHandler");
     }
     if (endHandler == null)
     {
         throw new ArgumentNullException("endHandler");
     }
     if (this._asyncInfo == null)
     {
         if (!(this is IHttpAsyncHandler))
         {
             throw new InvalidOperationException(System.Web.SR.GetString("Async_required"));
         }
         this._asyncInfo = new PageAsyncInfo(this);
     }
     if (this._asyncInfo.AsyncPointReached)
     {
         throw new InvalidOperationException(System.Web.SR.GetString("Async_addhandler_too_late"));
     }
     this._asyncInfo.AddHandler(beginHandler, endHandler, state);
 }