Upload file with progressbar

Very simple
create  a new system.net.webclient

WebClient wClient = new WebClient();
wClient.UploadProgressChanged += new UploadProgressChangedEventHandler(Progress);
wClient.UploadFileAsync(new Uri("adrress to where the file will be uploaded"), thefilepathinthedisk);


private void Progress(object sender, UploadProgressChangedEventArgs e)
        {
            // the progress
            progressBarobject.Value = e.ProgressPercentage;
          
        }
Indeed I have written an article about the progress bar within Silverlight context

http://www.c-sharpcorner.com/UploadFile/yougerthen/311172008084236AM/3.aspx

So combine this with what you will find in the article to build the solution