AttributeRouting ActionLink helper rendering query string value instead of including parameter in route

Question

I am working on my first MVC project and using attribute routing within my controllers. I am having a slight issue with one of my actions which has two possible route paths. The routes themselves are working but the actionLinks being generated are not to my liking.

Routes:

    [Route("add")]
    [Route("{parentId:int?}/add")]

ActionLink definition:

 @Html.ActionLink("Add Category", "Add", "Category", new { parentId = @Model.CurrentCategoryId}, new { @Class = "btn btn-primary"})

This works, but when a currentCategoryId is not null the link produced is this:

/categories/add?parentId=2

but what i would like to see (which is picked up when you hand roll the url) is:

/categories/2/add

is there anyway i can achieve this with the actionLink or any other MVC magic?

Denunciate

Looks like this route is getting overrided by the default route in the RouteConfig File. Try out coment that route to see what happens. – Holding

Answer 1

Try:

[Route("add", Order = 2)]
[Route("{parentId:int?}/add", Order = 1)]

That still may not work because the fact that you have a route that doesn't require a parameter may short-circuit the routing logic regardless. Another option would be to name each route and then explicitly state the one your want:

[Route("add", Name = "AddCategory")]
[Route("{parentId:int?}/add", Name = "AddCategoryForParentId")]

Then:

@Html.RouteLink("Add Category", "AddCategoryForParentId", new { parentId = @Model.CurrentCategoryId }, ...)

Substratosphere

Changing the order worked... Genius that it was something so simple. – Denunciate