ExtMapTypeControl
The ExtMapTypeControl is part of the GMaps Utility Library.
The ExtMapTypeControl is an opensource alternative to the controls that allow us to choose the kind of map.
Code.aspx
<cc1:GMap ID="GMap1" runat="server" />
Code.aspx.cs
GControl extMapType = new GControl(new ExtMapTypeControl(true, true, true, true, true));
GMap1.addControl(extMapType);
GMap1.setCenter(new GLatLng(47, -122));