HttpWebRequest & UploadProgressChanged?

Question

HttpWebRequest.BeginGetResponse을 사용하고 POST 메서드 업로드를 위해 진행률 변경 이벤트를받을 수 있습니까?

내가 지금 가지고있는 코드의 일부는 다음과 같습니다

HttpWebRequest req = (HttpWebRequest)WebRequestCreator.ClientHttp.Create(uploadUri); 

req.Method = "POST"; 
req.ContentType = "multipart/form-data; boundary=" + boundary + ""; 

req.ContentLength = dataBuffer.Length; 

req.AllowReadStreamBuffering = false; 
req.AllowWriteStreamBuffering = false; 

DispatcherHelper.CheckBeginInvokeOnUI(() => 
{ 
    ProgressText = "Waiting for request stream..."; 
}); 

req.BeginGetRequestStream(new AsyncCallback(GotRequestStreamForUpload), new SendPhotoAsyncState(req, dataBuffer, photo)); 

BeginGetResponse를 호출 :

request.BeginGetResponse(new AsyncCallback(GotResponseStreamForUpload), new SendPhotoAsyncState(request, null, flickRPhoto)); 

내가 스트림에 변경 통지 할 요청을 알 수있는 방법 ? 내가 사진을 업로드의 진행에 따라 UI를 업데이트 할 수 있도록하려는

...

다음 코드는 웹 클라이언트와 함께 작동하지 않습니다이 실버 라이트

 WebClient wc = new WebClient(); 

     wc.UploadStringCompleted += (s, e) => 
      { 
       // What photo is this ? 
       FlickRUploadPhoto fup = ((SendPhotoAsyncState)e.UserState).FlickrPhoto2Upload; 
       DispatcherHelper.CheckBeginInvokeOnUI(() => 
       { 
        fup.tCompleted = DateTime.Now; 
        FileUploadComplete(this, new FlickRUploadCompleteEventArgs(fup)); 
       }); 

      }; 

     wc.UploadProgressChanged += (s2,e2) => 
      { 

       // Was there an error ? 

       // What photo is this ? 
       FlickRUploadPhoto fup = ((SendPhotoAsyncState)e2.UserState).FlickrPhoto2Upload; 
       DispatcherHelper.CheckBeginInvokeOnUI(() => 
        { 
         fup.ProgressPercentage = e2.ProgressPercentage; 
         fup.ProgressPercentageString = e2.ProgressPercentage.ToString() + "%"; 
         fup.BytesUploaded = e2.BytesSent; 
        }); 
      }; 


     string data = dataBuffer.ToString(); 
     wc.UploadStringAsync(uploadUri, "POST", data , new SendPhotoAsyncState(null, dataBuffer, photo)); 

입니다 .. 그래서 나는 UploadStringAsync를 사용해야한다. ??

Answer 1

당신은 HttpWebRequest를 함께 할 수는 없지만, 웹 클라이언트와 함께 할 수 있습니다

public void Upload(string targetUri, string filePath) 
    { 
     WebClient client = new WebClient(); 
     client.UploadProgressChanged += new UploadProgressChangedEventHandler(client_UploadProgressChanged); 
     client.UploadFile(targetUri, filePath); 
    } 

또는 UploadData 로컬 파일이없는 경우 :

public void Upload(string targetUri, byte[] buffer) 
    { 
     WebClient client = new WebClient(); 
     client.UploadProgressChanged += new UploadProgressChangedEventHandler(client_UploadProgressChanged); 
     client.UploadData(targetUri, buffer); 
    }