You create a new ASP.NET MVC 2 Web application. The following default routes are created in the Global.asax.cs file. (Line numbers are included for reference only.) 01 public static void…

You create a new ASP.NET MVC 2 Web application. The following default routes are created in the Global.asax.cs file. (Line numbers are included for reference only.) 01 public static void RegisterRoutes(RouteCollection routes) 02 { 03 routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); 05 routes.MapRoute("Default", "{controller}/{action}/{id}", new {controller = "Home", action = "Index", id = ""}); 06 } You implement a controller named HomeController that includes methods with the following signatures. public ActionResult Index() public ActionResult Details(int id) public ActionResult DetailsByUsername(string username) You need to add a route to meet the following requirements.

• The details for a user must to be displayed when a user name is

entered as the path by invoking the DetailsByUsername action.

• User names can contain alphanumeric characters and underscores, and

can be between 3 and 20 characters long. What should you do?