Unexpected behaviour of RedirectToAction() (MVC5)

Question

I am having a problem when trying to use RedirectToAction().

In my RouteConfig.cs I have something like this:

        routes.MapRoute(
            name: "Custom",
            url: "myroot/{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = "0" }
        );

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index", id = "0" }
        );

From my controller, if I try this:

    public ActionResult Contact()
    {
        return RedirectToAction("About", "Home");
    }

I get this URL:

http://localhost:51547/myroot/Home/About

Which is not what I expected. If I try this:

return RedirectToRoute("Default", new { controller = "Home", action = "About" });

I get this URL:

http://localhost:51547/Home/About

Which makes sense to me.

Can anybody explain why RedirectToAction is adding the myroot/ prefix to the URL instead of matching the Default route?

Thank you!

Answer 1

Please change your Route order as

    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = "0" }
    );routes.MapRoute(
        name: "Custom",
        url: "myroot/{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = "0" }
    );