[Export(typeof(IApplicationLink))]
    public class StreetViewLink : ApplicationLink<StreetViewData>
    {
        public StreetViewLink()
        {
            DataIdentifiers = new List<ApplicationLinkDataIdentifier<StreetViewData>> { new StreetViewDataIdentifier() };
        }

        protected override void OnApplicationLinkExecute(StreetViewData linkData)
        {
            if (linkData != null)
            {
                string link2 = "http://maps.google.com/maps?q=&layer=c&cbll=" + linkData.Latitude + "," + linkData.Longitude + "&cbp=12&output=svembed";
                var navigateUri = new Uri(link2);



                HtmlPage.Window.Navigate(navigateUri, "__blank", "height=376,width=501,status=no,scrollbars=no,toolbar=no,resizable=true");
            }
        }

        public override string GetDisplayName()
        {
            return "Street View";
        }
    }

  
    public class StreetViewData
    {
        public double Latitude;
        public double Longitude;
    }

 
   public class StreetViewDataIdentifier : ApplicationLinkDataIdentifier<StreetViewData>
    {
        public override bool CanLinkFromObject(Feature o)
        {
            return o.Geometry != null && o.Geometry.GetGeometryEnumType() == GeometryTypes.Point;
        }

        public override StreetViewData GetLinkData(Feature o)
        {
            var projector = new ESRI.ArcGIS.Client.Projection.WebMercator();
            var geometry = GeometryTranslator.Translate(projector.ToGeographic(
                GeometryTranslator.Translate(o.Geometry) ) );

            return new StreetViewData { Latitude = geometry.Y.Value, Longitude = geometry.X.Value };
        }
    }