How to Combine two controllers and then Action in mvc

Question

I am making an eCommerce website it has
Home Controller
Categories Controller
Products Contoller

Now i want is when i click on Categories route should be like this

www.domain.com/Categories/

when i click on Products route should be like this

www.domain.com/Products/

And when i go to products like phones,pendrive, or TV the route should go like

 www.domain.com/Categories/Products/pendrive

just because pendrive come from Products and Products comes from Categories so i want to combine two controllers so i can get the required route

Tried something like this but didn't worked

routes.MapRoute(
                name: "Default1",
                url: "Categories/{controller}/{action}/{id}",
                defaults: new { controller = "Products", action = "Index", id = UrlParameter.Optional}
            );

Answer 1

You can create a route with same constraints like this:

routes.MapRoute(name: "Product",
                url: "Categories/Product/{id}",
                defaults: new { controller = "Products", action = "Index", id = UrlParameter.Optional});

Just make sure this is registered before the default route.