title: AddQueryOption not working in WCF DataServices Portable
body: <p>I have created a Xamarin.Forms project and now I intend to consume some data from a WCF Data Service.</p>
  
  <p>I create the query like this:</p>
  
  <pre><code>        MyEntities entities = new MyEntities(new Uri("http://localhost/MyService.svc/"));
          DataServiceQuery&lt;MyServiceReference.Info&gt; query = entities.CreateQuery&lt;MyServiceReference.Info&gt;("GetInfo");            
          query.AddQueryOption("infoTag", "abc");
          query.BeginExecute((result) =&gt;
          {
              try
              {
                  var que = result.AsyncState as DataServiceQuery&lt;MyServiceReference.Info&gt;;
                  var res = que.EndExecute(result);
                  foreach (var item in res)
                  {
                      System.Diagnostics.Debug.WriteLine(item.Name);
                  }
              }
              catch (Exception ex)
              {
                  System.Diagnostics.Debug.WriteLine(ex.Message);
              }
          }, query);
  </code></pre>
  
  <p>According to <a href="http://blogs.msdn.com/b/marcelolr/archive/2010/07/06/custom-query-options-on-the-wcf-data-services-client.aspx" rel="nofollow">this tutorial</a>, I should see the complete query along with the parameters.</p>
  
  <p>When I check the query URI, it is this: <code>http://localhost/MyService.svc/GetInfo</code></p>
  
  <p>It seems that the parameters are missing. </p>
  
  <p>How could I add them properly?</p>