o_19mgorv9t13a3ko71fev19l81mqa.pdf

{controller}/{action}/{id}/{*catchall}",
new { controller = "Home", action = "Index",
id = UrlParameter.Optional
} , new[] { "URLsAndRoutes.AdditionalControllers" });
}
}
}
I express the namespaces as an array of strings and in the listing I have told the MVC Framework to look in the
URLsAndRoutes.AdditionalControllers namespace before looking anywhere else.
If a suitable controller cannot be found in that namespace, then the MVC Framework will default to its regular behavior and look
in all of the available namespaces. If you start the app once you have made this addition to the route, you will see the result shown
in Figure 15-12, which shows that the request for the root URL, which is translated in to a request for the Index action method
in the Home controller, has been sent to the controller in the AdditionalControllers namespace.
Figure 15-12. Giving priority to controllers in a specified namespaces
The namespaces added to a route are given equal priority. The MVC Framework does not check the first namespace before
moving on to the second and so forth. For example, suppose that I added both of the project namespaces to the route, like this:
...
routes.MapRoute("MyRoute", "{controller}/{action}/{id}/{*catchall}",
new { controller = "Home", action = "Index", id =
UrlParameter.Optional },
new[] { "URLsAndRoutes.AdditionalControllers",
"UrlsAndRoutes.Controllers" });
...
I would see the same error as shown in Figure 15-11, because the MVC Framework is trying to resolve the controller class
name in all of the namespaces added to the route. If I want to give preference to a single controller in one namespace, but have all
other controllers resolved in another namespace, I need to create multiple routes, as shown in Listing 15-26.
Listing 15-26. Using Multiple Routes to Control Namespace Resolution in the RouteConfig.cs File
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
namespace UrlsAndRoutes {
public class RouteConfig {
public static void RegisterRoutes(RouteCollection routes) {
385
routes.MapRoute("AddContollerRoute",