<ListBox.ItemTemplate><DataTemplate><StackPanel VerticalAlignment="Top"><TextBlock TextDecorations="Underline" FontSize="24" Name="feedTitle" TextWrapping="Wrap" Margin="12,0,0,0" HorizontalAlignment="Left" Foreground="{StaticResource PhoneAccentBrush}" Text="{Binding Title.Text, Converter={StaticResource RssTextTrimmer}}" /><TextBlock Name="feedSummary" TextWrapping="Wrap" Margin="12,0,0,0" Text="{Binding Summary.Text, Converter={StaticResource RssTextTrimmer}}" /><TextBlock Name="feedPubDate" Foreground="{StaticResource PhoneSubtleBrush}" Margin="12,0,0,10" Text="{Binding PublishDate.DateTime}" /></StackPanel></DataTemplate></ListBox.ItemTemplate></ListBox>

            // WebClient is used instead of HttpWebRequest in this code sample because // the implementation is simpler and easier to use, and we do not need to use // advanced functionality that HttpWebRequest provides, such as the ability to send headers.WebClient webClient = new WebClient();// Subscribe to the DownloadStringCompleted event prior to downloading the RSS feed.webClient.DownloadStringCompleted += new DownloadStringCompletedEventHandler(webClient_DownloadStringCompleted);// Download the RSS feed. DownloadStringAsync was used instead of OpenStreamAsync because we do not need // to leave a stream open, and we will not need to worry about closing the channel. webClient.DownloadStringAsync(new System.Uri("http://n.rss.qq.com/rss/tech_rss.php"));

        // This method sets up the feed and binds it to our ListBox. private void UpdateFeedList(string feedXML){// Load the feed into a SyndicationFeed instanceStringReader stringReader = new StringReader(feedXML);XmlReader xmlReader = XmlReader.Create(stringReader);SyndicationFeed feed = SyndicationFeed.Load(xmlReader);// In Windows Phone OS 7.1, WebClient events are raised on the same type of thread they were called upon. // For example, if WebClient was run on a background thread, the event would be raised on the background thread. // While WebClient can raise an event on the UI thread if called from the UI thread, a best practice is to always // use the Dispatcher to update the UI. This keeps the UI thread free from heavy processing.Deployment.Current.Dispatcher.BeginInvoke(() =>{// Bind the list of SyndicationItems to our ListBoxfeedListBox.ItemsSource = feed.Items;  //SyndicationItemloadFeedButton.Content = "Refresh Feed";});}