winformsMap1.MapUnit = GeographyUnit.Meter;

            Proj4Projection prj = new Proj4Projection();
            prj.InternalProjectionParametersString = Proj4Projection.GetEpsgParametersString(4326);
            prj.ExternalProjectionParametersString = Proj4Projection.GetGoogleMapParametersString();
            prj.Open();


            ShapeFileFeatureLayer layer = new ShapeFileFeatureLayer(@"..\..\sampledata\data\countries02.shp", ShapeFileReadWriteMode.ReadOnly) { FeatureSource = { Projection = prj } };
            var pen = new GeoPen(GeoColor.StandardColors.OliveDrab);
            layer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = new HueFamilyAreaStyle(pen, GeoColor.StandardColors.PaleGreen, 6);
            layer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;


            LayerOverlay _staticOverlay = new LayerOverlay { IsBase = true };
            _staticOverlay.Layers.Add("layer", layer);

            layer.Open();
            ShapeFileFeatureLayer.BuildIndexFile(@"..\..\sampledata\data\countries02.shp"); // or layer.RequireIndex = false
            layer.WrappingMode = WrappingMode.WrapDateline;
            layer.WrappingExtent = layer.GetBoundingBox(); // or layer.WrappingExtent = new RectangleShape(-180,90,180,-90)

            winformsMap1.CurrentExtent = layer.GetBoundingBox();
            winformsMap1.Overlays.Add(_staticOverlay);
            winformsMap1.Refresh();