private void DisplayMap_Load(object sender, EventArgs e)
        {
            winformsMap1.MapUnit = GeographyUnit.DecimalDegree;
            winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);

            WorldMapKitWmsDesktopOverlay worldMapKitDesktopOverlay = new WorldMapKitWmsDesktopOverlay();
            winformsMap1.Overlays.Add(worldMapKitDesktopOverlay);

            winformsMap1.CurrentExtent = new RectangleShape(-139.2, 92.4, 120.9, -93.2);
            winformsMap1.MapClick += new EventHandler<MapClickWinformsMapEventArgs>(winformsMap1_MapClick);
            winformsMap1.Refresh();
        }

        void winformsMap1_MapClick(object sender, MapClickWinformsMapEventArgs e)
        {
            winformsMap1.CenterAt(new PointShape(0, 0));
            winformsMap1.Refresh();
        }