ArcGISWindowsPhoneSDK.Densify.MyDrawObject_DrawBegin C# (CSharp) 메소드

        private void MyDrawObject_DrawBegin(object sender, EventArgs args)
        {
            GraphicsLayer graphicsLayerPolygon = MyMap.Layers["PolygonGraphicsLayer"] as GraphicsLayer;
            graphicsLayerPolygon.ClearGraphics();
            GraphicsLayer graphicsLayerVertices = MyMap.Layers["VerticesGraphicsLayer"] as GraphicsLayer;
            graphicsLayerVertices.ClearGraphics();
        }