Question

In my routing I would like to have something like not found route handler.

For example I have created one mapping like

routes.MapRoute(                      'default',                      '{controller}/{action}/{id}',                      new { controller = 'Home', action = 'Index', id='' }              );  routes.MapRoute(                      'Catchall',                      '{*catchall}',                      new { controller = 'Home', action = 'Lost' }              ); 

but when user inserts address something like /one/two/three/four/bla/bla it will be cached with the Catchall mapping.

But when user inserts something that should match with default mapping, (like /one/two/ ,but this controller or action is not implemented) I would want that Catchall mapping would accept this request, because all other mappings failed. But instead of this I get an error.

Should I override some mapping handlers to catch the exception if controller or action getting an exception?

Answer 1

The issue here is that it’s not the Route’s responsibility to make sure that ‘one/two’ maps to a file. That responsibility falls to the ViewEngine. Since ‘one/two’ is a valid route, it will be chosen.

If you want to handle the error of an invalid route, what I would recommend you do is simply use the built in ErrorHandling ‘page’ to display whatever message you would have done in the Catchall.