title: how to sort feed by category if im using syndication in Windows Phone 7?
body: <p>Im writing an Rss reader. My question is: can I sort by category if im using syndicationfeed? the idea is for the feed to already be sorted when it is displayed in listbox. Sort and display on 1 predefined category only.</p>
  
  <p>Im a new programer so Im working on this MSDN example: <a href="http://msdn.microsoft.com/en-us/library/hh487167(v=vs.92).aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/hh487167(v=vs.92).aspx</a></p>
  
  <p>RSS feed i'm using is: <a href="http://www.zimo.co/feed/" rel="nofollow">http://www.zimo.co/feed/</a></p>
  
  <hr>
  
  <p><strong>UPDATE:</strong></p>
  
  <p>my new try to solve but fail:    </p>
  
  <pre><code>private void UpdateFeedList(string feedXML)
      {
          StringReader stringReader = new StringReader(feedXML);
          XmlReader xmlReader = XmlReader.Create(stringReader);
                                                                //problem below (I do not get sort method)
          SyndicationFeed feed = SyndicationFeed.Load(xmlReader).Categories.sort();
  
  
          Deployment.Current.Dispatcher.BeginInvoke(() =&gt;
          {
             //binding listbox with feed items
              ls_text.ItemsSource = feed.Items;
  
  
  
          });
      }
  </code></pre>