title: passing parameter to DownloadStringCompletedEventHandler in C#
body: <p>i am working on application in WP7 , i would like to pass a list box as parameter to client_DownloadStringCompleted method. </p>
  
  <p>My code looks like below , </p>
  
  <pre><code>WebClient client = new WebClient();
  client.DownloadStringCompleted += new DownloadStringCompletedEventHandler(client_DownloadStringCompleted);
  </code></pre>