ArcGISWindowsPhoneSDK.SwitchMap.Menu_ItemSelected C# (CSharp) 메소드

        private void Menu_ItemSelected(object sender, EventArgs e)
        {
            ArcGISTiledMapServiceLayer arcgisLayer = MyMap.Layers["AGOLayer"] as ArcGISTiledMapServiceLayer;
            ApplicationBarMenuItem menuItem = sender as ApplicationBarMenuItem;
            switch (menuItem.Text)
            {
                case "Aerial":
                    arcgisLayer.Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer";
                    break;
                case "Road":
                    arcgisLayer.Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer";
                    break;
                case "Topo":
                    arcgisLayer.Url = "http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer";
                    break;
            }
        }