MVC异步控制器加载一个网页的所有内容

     public void PageAsync() {

             AsyncManager.OutstandingOperations.Increment();

             WebRequest req = WebRequest.Create("http://www.asp.net");
             req.BeginGetResponse((IAsyncResult ias) => {
                 WebResponse resp = req.EndGetResponse(ias);

                 string content = new StreamReader(resp.GetResponseStream()).ReadToEnd();
                 AsyncManager.Parameters["html"] = content;
                 AsyncManager.OutstandingOperations.Decrement();

             }, null);
         }

         public ContentResult PageCompleted(string html) {

             return Content(html, "text/html");
         }

 

view中的代码：

 @model string
 @{
     ViewBag.Title = "Data";
 }
 Data: @Model