//File: Page.cs using System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Text; namespace SilverlightApplication3 { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); } private void myButton_Click(object sender, RoutedEventArgs e) { RequestStreamContent(); } public void RequestStreamContent() { Uri uri = new Uri("http://silverlightinaction.com/video3.wmv"); WebClient webClient = new WebClient(); webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(webClient_DownloadProgressChanged); webClient.OpenReadAsync(uri); } void webClient_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e) { StringBuilder sb = new StringBuilder(); sb.Append(e.BytesReceived + " of "); sb.Append(e.TotalBytesToReceive + " bytes received"); myTextBlock.Text = sb.ToString(); } } }