Question

I am trying to call a controller action defined in an external assembly but application always returns that the resource is not found. the controller is trivial and looks like this:

namespace MyExternal.Controllers
{
    [HandleError]
    public class ProjAdminController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }
    }
}

Then I updated the route to include the optional namespace:

routes.MapRoute(
  "Default", // Route name
  "{controller}/{action}/{id}", // URL with parameters
  new { controller = "Home", action = "Index", id = UrlParameter.Optional },         
  new[] { "MyExternal.Controllers" }
 );

However, when I try to invoke the controller and action it doesnt find the controller. I installed the route debugger and it passes the route test , but it doesnt find the controller or stop on my breakpoint. Its probably someting pretty small, but I can’t figure this out. My apologies is this is a dup. turns out the original code had a bug in the naming of the controller class, but the rest of the code works nicely as an example of how to do this.

Answer 1

IMO you should add area parameter to the action invocation. It should contains a namespace of that controller.