How can I add custom URL parameters to a MVC RedirectToAction

Question

I currently have a simple MVC RedirectToAction action:

return RedirectToAction("Edit", "Customers", new {Id = iNewId});

which redirects to Cutomers/Edit/1

However I'd like to append some custom values to the URL which will get used by javascript, returning URLs such as Cutomers/Edit/1#Tab1

What is the best method of doing this?

Answer 1

routes.MapRoute("WithTarget", "{controller}/{action}/{id}#{target}");

and

RedirectToAction("Edit", "Customers", new { id = iNewId, target = "Tab1" });

or

RedirectToRoute("WithTarget", new { controller = "Customers", action = "Edit", id = iNewId, target = "Tab1" });

But remember that the fragment is never sent from the client to the web server, so there's no way to read its value in a controller action.