public Relation()
{
InitializeComponent();
polygonLayer = MyMap.Layers["MyPolygonGraphicsLayer"] as GraphicsLayer;
MyMap.Layers.LayersInitialized += Layers_LayersInitialized;
pointLayer = MyMap.Layers["MyPointGraphicsLayer"] as GraphicsLayer;
MyDrawObject = new Draw(MyMap)
{
DrawMode = DrawMode.Point,
IsEnabled = false,
};
MyDrawObject.DrawComplete += MyDrawObject_DrawComplete;
}