title: how to add pushpins on map in windows phone 8.1
body: <p>Is there any tutorial or sample that shows how to add pushpin on a map in windows phone 8.1 
  this code is not working:</p>
  
  <pre><code>MapIcon MapIcon1 = new MapIcon();
  MapIcon1.Location = new Geopoint(new BasicGeoposition()
  {
      Latitude = latitude,
      Longitude = -longitude
   });
   MapIcon1.NormalizedAnchorPoint = new Point(0.5, 1.0);
   RestoMap.MapElements.Add(MapIcon1);
  </code></pre>