This sample contains four controls, all bound to the same instance data; an input control, two range controls, and an output control.
Changing the value of any of the 'input' controls (i.e., the xf:input control, or either of the xf:range
controls) will change the model value of all four controls.
To change the value using the Google Maps (i.e., either of the two xf:range controls) simply drag either map around.