The router tracks navigation through the fragment part of the URL. Using the default route:
in the scenario you described that would mean tracking changes to the highlighted part only:
whereas changes to the controller and action in the URL are handled by MVC.
As for preventing navigation with the Router in general, this can be done by preventing its change event conditionally, e.g.:
Get quickly onboarded and successful
with your Telerik and/or Kendo UI products with the Virtual Classroom free technical training, available to all active customers. Learn More.