Why my view action links including current action params in MVC3

Question

I am working on a MVC3 application.

In my view I am using @Html.ActionLink for anchor links. Every thing working fine. But those links are including the current url's params in the link.

If my current link is http://localhost:25466/Blog/all/2

Action link being generated are http://localhost:25466/Blog/Blog/shoes/2

In the above link actually I am not doing any thing to include '2' in the url. But still it is being added.

My route config are

routes.MapRoute(
                "Blog", "Blog/Blog/{tag}/{id}",
            new { controller = "Blog", action = "Blog", tag = UrlParameter.Optional,id="1" }
            );

            routes.MapRoute(
                name: "Default",
                url: "{controller}/{action}/{id}",
                defaults: new { controller = "Home", action = "Index", id = "1" },
                constraints: new { id = @"\d+" }
            );

And my actions are

 public ActionResult All(int id)
        {
            var context = new BlogCore.DbContext.BlogContext();
            var list = context.Get(id,20);
            return View(list);
        }

        public ActionResult Blog(string tag,int id)
        {
            var context = new BlogCore.DbContext.BlogContext();
            var list = context.Get(HttpUtility.UrlEncode(tag), id, 20);
            return View("All", list);
        }

And this is how I am using actionlink to generate anchor link

@Html.ActionLink(blog.PostTitle, "Blog", "Blog", new { tag = blog.PostRewriteName }, null)

How can I avoid 2 in the action link.

Thanks in advance.

score 1 · Accepted Answer · answered Nov 13 '12 at 02:11

1

I think you have to explicitly set that parameter, like:

@Html.ActionLink(blog.PostTitle, "Blog", "Blog", new { tag = blog.PostRewriteName, id = 1 }, null)

I believe the actual view dictionary is taken into account when creating a link with ActionLink.

answered Nov 13 '12 at 02:11

Grimace of Despair

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Thanks for resondoing. Actually I tried that but it wasn't working. – Naresh Nov 13 '12 at 02:15
Aahhh....Sorry I was trying this with a different link. It's working. But does action link consider the url params while costructing? – Naresh Nov 13 '12 at 02:20
I guess not directly, but as they end up in the RouteValueDictionary: yes – Grimace of Despair Nov 13 '12 at 15:58

score 1 · Answer 2 · answered Nov 13 '12 at 07:23

MVC will use any variables from the current querystring when finding a route to generate a url. So your variable id will be included. To avoid this, you need to explicitly set id to null in the routedata you pass to the ActionLink helper:

@Html.ActionLink(blog.PostTitle, "Blog", "Blog", new { tag = blog.PostRewriteName, id = null }, null)

Why my view action links including current action params in MVC3

2 Answers2