ArcGISWindowsPhoneSDK.GeometryJSON.MyDrawObject_DrawComplete C# (CSharp) Method

        private void MyDrawObject_DrawComplete(object sender, ESRI.ArcGIS.Client.DrawEventArgs args)
        {
            ClearGraphicsLayers();

            Graphic graphic = new Graphic();
            if (args.Geometry is MapPoint)
                graphic.Symbol = LayoutRoot.Resources["BlueMarkerSymbol"] as SimpleMarkerSymbol;
            else if (args.Geometry is Polyline)
                graphic.Symbol = LayoutRoot.Resources["BlueLineSymbol"] as SimpleLineSymbol;
            else if (args.Geometry is Polygon)
                graphic.Symbol = LayoutRoot.Resources["BlueFillSymbol"] as SimpleFillSymbol;
            else if (args.Geometry is Envelope)
                graphic.Symbol = LayoutRoot.Resources["BlueFillSymbol"] as SimpleFillSymbol;

            if (graphic.Symbol != null)
            {
                graphic.Geometry = args.Geometry;
                _myToJsonGraphicsLayer.Graphics.Add(graphic);
            }

            // Convert from Geometry to ArcGIS REST geometry json
            OutJsonTextBox.Text = args.Geometry.ToJson();
        }