Html.MyThinkGeo().MyMap("Map1", new System.Web.UI.WebControls.Unit(100, System.Web.UI.WebControls.UnitType.Percentage), 510) .CustomOverlays(overlays => { GoogleMapsLayer google = new GoogleMapsLayer(); google.MapType = GoogleMapsMapType.Mobile; ((MyCollection)overlays).MyOverlay().Layer(google); }) .MapBackground(new BackgroundLayer(new GeoSolidBrush(GeoColor.FromHtml("#E5E3DF")))) .CurrentExtent(-13939426.6371, 6701997.4056, -7812401.86, 2626987.386962) .MapUnit(GeographyUnit.Meter) .MapTools(t => { t.OverlaySwitcherMapTool().Enabled(true); t.MouseCoordinateMapTool().Enabled(true); }) .Render();