private void MyDrawObject_DrawComplete(object sender, DrawEventArgs args)
{
MyDrawObject.IsEnabled = false;
ESRI.ArcGIS.Client.Geometry.Polygon polygon = args.Geometry as ESRI.ArcGIS.Client.Geometry.Polygon;
polygon.SpatialReference = MyMap.SpatialReference;
geometryService.SimplifyAsync(new List<Graphic>() { new Graphic() { Geometry = polygon } });
}