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

            ShapeFileFeatureLayer worldLayer = new ShapeFileFeatureLayer(@"..\..\SampleData\Data\Countries02.shp");
            worldLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateSimpleAreaStyle(GeoColor.SimpleColors.Transparent, GeoColor.FromArgb(100, GeoColor.SimpleColors.Green));
            worldLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;

            LayerOverlay staticOverlay = new LayerOverlay();
            InMemoryFeatureLayer inmLayer = new InMemoryFeatureLayer();
            inmLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
            inmLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.Country1;

            staticOverlay.Layers.Add("WorldLayer", worldLayer);
            staticOverlay.Layers.Add("inmLayer", inmLayer);
            winformsMap1.Overlays.Add(staticOverlay);


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

        void winformsMap1_MapClick(object sender, MapClickWinformsMapEventArgs e)
        {
            FeatureLayer worldLayer = winformsMap1.FindFeatureLayer("WorldLayer");

            worldLayer.Open();
            Collection<Feature> selectedFeatures = worldLayer.QueryTools.GetFeaturesContaining(e.WorldLocation, new string[1] { "CNTRY_NAME" });
            worldLayer.Close();
            winformsMap1.EditOverlay.EditShapesLayer.Open();
            winformsMap1.EditOverlay.EditShapesLayer.Clear();
            foreach (Feature feature in selectedFeatures)
            {
                winformsMap1.EditOverlay.EditShapesLayer.InternalFeatures.Add(feature);
            }
            winformsMap1.EditOverlay.CalculateAllControlPoints();
            winformsMap1.Refresh();
        }

        class MyEditOverlay : EditInteractiveOverlay
        {
            protected override void DrawCore(GeoCanvas canvas)
            {
                Collection<SimpleCandidate> labelsInAllLayers = new Collection<SimpleCandidate>();
                EditShapesLayer.Open();
                EditShapesLayer.Draw(canvas, labelsInAllLayers);
            }
        }