Hi,
You don't really turn a route tracker object on or off rather, a location data source can pass new locations to a route tracker object. Is is the location data source that is turned "on" or "off"
If you use the RouteTrackerLocationDataSource it takes a route tracker object and a "base" location data source, then internally new incoming locations from the location data source are passed to the route tracker via the TrackLocationAsync method. The same is true if you used your write your own custom location data source class (vs using the RouteTrackerLocationDataSource), but in that case you'd explicitly call the TrackLocationAsync method.
So to "stop" the route tracker you'd stop the base location data source. So for example you can call the map's location display and set "isEnable=False", but if you want to still see the blue dot you'd have to reset the map's location display to a location data source object and enable it.
Examples
// stopping the location data source will stop the route
// tracker from getting new locations and remove blue dot
MyMapView.LocationDisplay.IsEnabled = false;
// stopping the location data source will stop the route
// tracker from getting new locations, so to still show a
// blue dot set the location data source on the map
MyMapView.LocationDisplay.IsEnabled = false;
MyMapView.LocationDisplay.DataSource = new SystemLocationDataSource();
MyMapView.LocationDisplay.IsEnabled = true;
Frank
