asp-area in forms generating a wrong route

Question

I have a problem in ASP.NET Core 5. When I use asp-area for example like this:

<form  asp-area="Admin" asp-controller="User" asp-action="Register">your text

the generated link for the code above is

https://localhost:44300/User/Register?area=Admin

though I want it to go

https://localhost:44300/Admin/User/Register

Am I doing someting wrong? Btw this my route in startup.cs:

app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");

            endpoints.MapControllerRoute(
                name: "areaRoute",
                pattern: "{area}/{controller=Home}/{action=Index}/{id?}");

            endpoints.MapControllerRoute(
              name: "areas",
              pattern: "{area:exists}/{controller=Home}/{action=Index}/{id?}");

        }
);

Have you also associated your controller with the area? learn.microsoft.com/en-us/aspnet/core/mvc/controllers/… — ADyson
– ADyson, Commented Oct 21 at 17:30
Also what is the purpose of this route: endpoints.MapControllerRoute( name: "areaRoute", pattern: "{area}/{controller=Home}/{action=Index}/{id?}"); ? The documentation and examples don't seem to regard this part as necessary. Just the last route you've specified ought to do the trick as far as I can see. — ADyson
– ADyson, Commented Oct 21 at 17:31

Yong Shun · Accepted Answer · 2025-10-22 05:37:22Z

3

Make sure that the area routes should be placed earlier as stated in the docs

Area routes typically use conventional routing rather than attribute routing. Conventional routing is order-dependent. In general, routes with areas should be placed earlier in the route table as they're more specific than routes without an area.

app.UseEndpoints(endpoints =>
{
    endpoints.MapControllerRoute(
        name: "areas",
        pattern: "{area:exists}/{controller=Home}/{action=Index}/{id?}");

    endpoints.MapControllerRoute(
        name: "default",
        pattern: "{controller=Home}/{action=Index}/{id?}");
})

Assume that you have applied that Area attribute to the controller:

[Area("Admin")]
public class UserController : Controller
{
    [HttpPost("Register")]
    public IActionResult Register(RegisterInputDto input)
    {
        ...
    }
}

answered Oct 22 at 5:37

Yong Shun

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4 Comments

Ali Sedghi Oct 22 at 6:43

yes i already done those im in a view of a admin area rn and i wanna jump to another action of a controller in a admin area and without asp-area it the generated link is .com/DashBoard/Index which i want it to be .com/Admin/DashBoard/index

Yong Shun Oct 22 at 7:10

Yes, if the API/page route is from the Area controller, you must provide the asp-area tag helper.

Ali Sedghi Oct 22 at 8:56

check the form code i wrote i write it but generates wrong route for me

Yong Shun Oct 22 at 8:59

Sounds odd, I wonder whether you have multiple area controllers, it would be great if you could attach the latest Program.cs in the question. And minimal code to reproduce

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