ASP.net MVC routing with optional first parameter

Question

I need to provide following functionality for one of the web sites.

http://www.example.com/[sponsor]/{controller}/{action}

Depending on the

Answer 1

i will show you in simple example you don't have to change in Route.config.cs only you have to do in Route.config.cs just put in

Optional URI Parameters First and Default Values

Route.config.cs

routes.MapMvcAttributeRoutes();

Controller

[Route("{Name}/Controller/ActionName")]
        public ActionResult Details(string Name)
        {            

              // some code here 

            return View();
        }

Results

localhost:2345/Name/controllername/actionname/id(optional)