Use a specific route with Url.Action

Question

I have two routes declared in my route config like this:

routes.MapRoute(
    name: "SpecificAction",
    url: "{controller}/{action}/{id}-{id2}",
    defaults: new { controller = "Main", action = "SpecificAction", id = UrlParameter.Optional, id2 = UrlParameter.Optional }
);

routes.MapRoute(
    name: "DefaultNoParams",
    url: "{controller}/{action}/",
    defaults: new { controller = "Main", Action = "Index" },
    namespaces: new string[1] { "Project.Controllers" }
);

I have two controller actions that look like this:

[HttpGet]
public ActionResult TheAction()
{

}

[HttpPost]
public ActionResult TheAction([ModelBinder(typeof(SpecificModelBinder))] SpecificModel model)
{

}

I want a link to the first of these actions in my view, so I generate one using Url.Action:

<a href="@Url.Action("TheAction", "Main")">The Action</a>

However, this outputs the url http://site/Main/TheAction/- (note the dash at the end, which seems to indicate that my SpecificAction route is being used.

Is there some way I can call Url.Action with a specific route? Or is there any other way I can avoid this dash appearing in the url?

The routing table doesn't affect how Url.Action renders a URL... So your link is rendered as <a href="http://site/Main/TheAction/-">? — Mister Epic
– Mister Epic, Commented Feb 14, 2014 at 19:50
Odd... What is rendered when you add this to your View: <a href="@Url.Action("TheAction")">The Action</a> — Mister Epic
– Mister Epic, Commented Feb 14, 2014 at 19:57

Community · Accepted Answer · 2017-05-23 11:53:26Z

12

Duplicate question is found here

In short, use Url.RouteUrl() intead of Url.Action() to get the correct URL.

In your case, you can even use @Html.RouteLink() to get the whole anchor tag if you wish.

edited May 23, 2017 at 11:53

CommunityBot

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answered Apr 1, 2015 at 10:40

d.popov

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Comments

Lin · Accepted Answer · 2014-02-15 03:49:08Z

4

Try to change the order of your routes. Put the SpecificAction route after the DefaultNoParams route like below:

routes.MapRoute(
    name: "DefaultNoParams",
    url: "{controller}/{action}/",
    defaults: new { controller = "Main", Action = "Index" },
    namespaces: new string[1] { "Project.Controllers" }
);

routes.MapRoute(
    name: "SpecificAction",
    url: "{controller}/{action}/{id}-{id2}",
    defaults: new { controller = "Main", action = "SpecificAction", id = UrlParameter.Optional, id2 = UrlParameter.Optional }
);

Update: To answer below requested question:

Can you provide some detail as to how the route table mappings would affect how Url.Action generates a URL such that a dash was being appended?

First, OP used below code in the view:

 <a href="@Url.Action("TheAction", "Main")">The Action</a>

it generates:

 <a href="/Main/TheAction">The Action</a>

The reason why there is a dash is because both id parameters are optional, so without both ids, there will only be a dash and it satisfies below route conditions.

routes.MapRoute(
            name: "SpecificAction",
            url: "{controller}/{action}/{id}-{id2}",
            defaults: new { controller = "Main", action = "SpecificAction", 
            id = UrlParameter.Optional, id2 = UrlParameter.Optional }
    );

If one of the ids are not optional, it'll keep checking the next routes. But OP needed the id parameters to be optional, that's why my solution is to change the route orders.

edited Feb 15, 2014 at 3:49

answered Feb 14, 2014 at 20:20

Lin

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3 Comments

Mister Epic Over a year ago

@Lin Can you provide some detail as to how the route table mappings would affect how Url.Action generates a URL such that a dash was being appended?

Lin Over a year ago

@ChrisHardie, I updated the answer to have more details, take a look.

d.popov Over a year ago

Well, the question was how to use a specific route, not how to setup routes. This does not answer the question.

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