Question

very simple basic question
I have only route:

 routes.MapRoute(
                "Widget", // Route name
                "Widget/Frame/{postUrl}", // URL with parameters
                new { controller = "Widget", action = "Index", postUrl = UrlParameter.Optional } // Parameter defaults
            );

And when i try to open following url:”http://localhost:50250/Widget/Frame/qwerty”

I have an error:

The view ‘qwerty’ or its master was not found or no view engine
supports the searched locations. The following locations were
searched:

Well…why?

Controller code:

public class WidgetController : Controller
    {
        //
        // GET: /Widget/

        public ActionResult Index(string postUrl, int? blogEngineType)
        {
            return View(postUrl);
        }




    }

Answer 1

I would hazard a guess and say it’s because it’s actually trying to use the action name of Index(), since that’s the default action that you’ve specified. You’re not passing an {action} parameter through the url, so where else will it get the action from?

Can you change your url pattern to Widget/{action}/{postUrl} and see if it works then?

Either that, or set the default value of action to Frame instead. Basically, it has no way of knowing that you’re looking for the Frame action, so it fails.

Edit: I see what you’re doing now – the action’s name is actually Index, right? In that case, I’m not sure, we need to see your controller code. I’ll leave the above answer in case it’s useful.

Edit 2: You’re passing the value “qwerty” as the view name – do you have a view named “qwerty” in the views folder?

If you intend for it to be the model, and for the view name to be “Index”, you should call return View((object)postUrl); instead, so that it doesn’t get confused.