Make webclient support upload the large file which are larger than 1G

step1: reconstruct the WebClient class

 

public   class  MyWebClient : WebClient
    {
         protected   override  WebRequest GetWebRequest(Uri address)
        {
            HttpWebRequest request  =   base .GetWebRequest(address)  as  HttpWebRequest;
            request.Timeout  =   - 1 ;
            request.CachePolicy  =   new  System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);
            request.AllowWriteStreamBuffering  =   false ;
             return  request;
        }
    }

Step2: use new WebClient as the WebClient

 

                WebClient web  =   new  MyWebClient();
                web.UploadFileCompleted  +=   new  UploadFileCompletedEventHandler(web_UploadFileCompleted);
                web.UploadProgressChanged  +=   new  UploadProgressChangedEventHandler(web_UploadProgressChanged);
                FileInfo fi  =   new  FileInfo( @" D:\VirtualBox VMs\VMxp\VMxp.vdi " );
                Uri uri  =   new  Uri( " http://127.0.0.1:9090/upload " );
                web.UploadFileAsync(uri, fi.FullName);