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POLINQ with ATOM feeds
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copied!<p>I am trying to create a simple Silverlight application that calls an ATOM feed and displays the article title and submit date. I found this very easy to do with RSS feeds and LINQ but I am stuck trying to do the same with an ATOM feed. The code below produces no errors but it also produced no results! What am I missing?</p> <p>Source ATOM feed: weblogs.asp.net/scottgu/atom.aspx</p> <p>Source Tutorial: www.switchonthecode.com/tutorials/silverlight-datagrid-the-basics</p> <p>Source code:</p> <pre><code>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.Xml.Linq; namespace BasicDataGridTutorial { public partial class Page : UserControl { public Page() { InitializeComponent(); } private void btnPopulate_Click(object sender, RoutedEventArgs e) { //disable the populate button so it's not clicked twice //while the data is being requested this.btnPopulate.IsEnabled = false; //make a new WebClient object WebClient client = new WebClient(); //hook the event that's called when the data is received client.DownloadStringCompleted += client_DownloadStringCompleted; //tell the WebClient to download the data asynchronously client.DownloadStringAsync( //new Uri("http://feeds.feedburner.com/SwitchOnTheCode?format=xml")); new Uri("http://weblogs.asp.net/scottgu/atom.aspx")); } private void client_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e) { this.btnPopulate.IsEnabled = true; if (e.Error == null) { XDocument document = XDocument.Parse(e.Result); XNamespace xmlns = "http://www.w3.org/2005/Atom"; var sotcPosts = from entry in document.Descendants(xmlns+ "entry") select new SOTCPost { Title = (string)entry.Element(xmlns + "feedEntryContent").Value, Date = (string)entry.Element(xmlns + "lastUpdated").Value }; this.sotcDataGrid.ItemsSource = sotcPosts; } } private void btnClear_Click(object sender, RoutedEventArgs e) { this.sotcDataGrid.ItemsSource = null; } } public class SOTCPost { public string Title { get; set; } public string Date { get; set; } } } </code></pre>

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