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Categories / Silverlight / Communication
 

Loading an image from a compressed package that was retrieved on demand

<UserControl x:Class='SilverlightApplication3.MainPage'     xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'      xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'     xmlns:d='http://schemas.microsoft.com/expression/blend/2008'      xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006'      mc:Ignorable='d'      d:DesignWidth='640'      d:DesignHeight='480'>     <Grid x:Name="LayoutRoot" Background="White">         <StackPanel Orientation="Vertical">             <Button x:Name="myButton" Content="Get Image" Height="30" Width="90" Click="myButton_Click" />             <Image x:Name="myImage" />         </StackPanel>               </Grid> </UserControl> //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.IO; using System.Windows.Resources; using System.Windows.Media.Imaging; namespace SilverlightApplication3 {     public partial class MainPage : UserControl     {         public MainPage()         {             InitializeComponent();         }         private void myButton_Click(object sender, RoutedEventArgs e)         {             RequestContent();         }         private void RequestContent()         {             Uri address = new Uri("http://server.com/files.zip");               WebClient webClient = new WebClient();             webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient_OpenReadCompleted);             webClient.OpenReadAsync(address, "man.png");                                     }         void webClient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)         {             Uri part = new Uri(Convert.ToString(e.UserState), UriKind.Relative);                 StreamResourceInfo zipStream = new StreamResourceInfo(e.Result as Stream, null);                                  StreamResourceInfo imageStream = Application.GetResourceStream(zipStream, part);                                    BitmapImage image = new BitmapImage();                                               image.SetSource(imageStream.Stream);                                                 myImage.Source = image;                                                          }     } }