MVC routing with multiple parameter with different parameter name

Question

In my home controller, I have 3 Action methods. which is give below.

        public ActionResult Index(int id)
        {
            return View();
        }


        public ActionResult Index2(int did,int docType)
        {
            return View();
        }


        public ActionResult Index3(int uid,int docId,int typeId)
        {
            return View();
        }

As I had given diffrent parameter name in each action methods so I have to change in Route.config.

I have Done this

Method 1

routes.MapRoute(
                name: "Home",
                url: "{controller}/{action}/{did}/{docType}",
                defaults: new { controller = "Home", action = "Index2", did = UrlParameter.Optional, docType = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "Home",
                url: "{controller}/{action}/{uid}/{docId}/{typeId}",
                defaults: new { controller = "Home", action = "Index3", uid = UrlParameter.Optional, docId = UrlParameter.Optional, typeId = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

but it is giving me exception like

Home' is already in the route collection. Route names must be unique

So I have change it to like this

Method 2

 routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}/{did}/{docType}/{uid}/{docId}/{typeId}",
            defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional, did = UrlParameter.Optional, docType = UrlParameter.Optional, uid = UrlParameter.Optional, docId = UrlParameter.Optional, typeId = UrlParameter.Optional }
        );

When I hit Url like

http://localhost:50958/Home/Index/2

http://localhost:50958/Home/Index2/2/3

http://localhost:50958/Home/Index3/2/3/4

it throwing me exception.

This is Solution.

As suggested by Stephen Muecke

 routes.MapRoute(
                name: "Admin",
                url: "{controller}/{action}/{did}/{docType}",
                defaults: new { controller = "Home", action = "Index2", did = UrlParameter.Optional, docType = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "User",
                url: "{controller}/{action}/{uid}/{docId}/{typeId}",
                defaults: new { controller = "Home", action = "Index3", uid = UrlParameter.Optional, docId = UrlParameter.Optional, typeId = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

The reason for the first error is because your first 2 route definitions have name: "Home", - they need to be unique. Just change one or the other — user3559349
– user3559349, Commented May 21, 2015 at 10:56
@StephenMuecke:But my all the actions are in Home Controller. — Amit Kumar
– Amit Kumar, Commented May 21, 2015 at 10:57
That has nothing at all do do with it. Call then anything you want. They just need to be unique — user3559349
– user3559349, Commented May 21, 2015 at 10:58
@StephenMuecke: thanks . It works. can it be possible by method 2. — Amit Kumar
– Amit Kumar, Commented May 21, 2015 at 10:59
I doubt it. Only the last parameter can be optional so you would need to provide at least 5 parameters every time to avoid ambiguity. Note also the name property is used by methods such as @Html.RouteLink("XYZ"); which matches routes.MapRoute( name: "XYZ, ...) — user3559349
– user3559349, Commented May 21, 2015 at 11:04

user2686282 · Accepted Answer · 2015-05-21 12:07:54Z

1

Route name should be unique, You have two routes with same name: "Home"

answered May 21, 2015 at 12:07

user2686282

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Comments

Amit Kumar · Accepted Answer · 2015-05-22 05:20:39Z

As I had given same name to all route. and route name must be unique, now i have rename the route with different name.

routes.MapRoute(
                name: "Admin",
                url: "{controller}/{action}/{did}/{docType}",
                defaults: new { controller = "Home", action = "Index2", did = UrlParameter.Optional, docType = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "User",
                url: "{controller}/{action}/{uid}/{docId}/{typeId}",
                defaults: new { controller = "Home", action = "Index3", uid = UrlParameter.Optional, docId = UrlParameter.Optional, typeId = UrlParameter.Optional }
            );
            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
            );

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