ASP.NET Core route of a controller and the index action

I'm trying to set a route of my controller while also be able to navigate the index without typing Index, here's what I tried:

Index

My route configuration

app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});


Try #1

// My controller
[Route("panel/admin")]
public class MyController...

// My index action
public IActionResult Index()...


Problem: This doesn't work, all the actions become accessible at panel/admin so I get an error saying Multiple actions matched.
Even when setting the route of my index action to Route(""), doesn't change anything.

panel/admin

Multiple actions matched

Route("")

Try #2

// My controller
[Route("panel/admin/[action]")]
public class MyController...

// My index action
[Route("")]
public IActionResult Index()...


Here, the index route doesn't change, it stays panel/admin/Index.

panel/admin/Index

What I want

I want to be able to access my index action when navigating to panel/admin and I also want my other actions to work with just their method names like panel/admin/UsersList.

panel/admin

panel/admin/UsersList

Complete controller

[Route("panel/admin/[action]")]
public class MyController
{

[Route("")]
public IActionResult Index()
{
return View();
}

public IActionResult UsersList()
{
var users = _db.Users.ToList();
return View(users);
}

// Other actions like UsersList

}


Thank you.

[Route("panel/admin/")]

1 Answer
1

Reference Routing to controller actions in ASP.NET Core

With attribute routes you have to be very specific about desired routes to avoid route conflicts. Which also means that you will have to specify all the routes. Unlike convention-based routing.

Option #1

[Route("panel/admin")]
public class MyController {

[HttpGet]
[Route("")] //GET panel/admin
[Route("[action]")] //GET panel/admin/index
public IActionResult Index() {
return View();
}

[HttpGet]
[Route("[action]")] //GET panel/admin/UsersList
public IActionResult UsersList() {
var users = _db.Users.ToList();
return View(users);
}

// Other actions like UsersList
}


Option #2

[Route("panel/admin/[action]")]
public class MyController {

[HttpGet] //GET panel/admin/index
[Route("~/panel/admin")] //GET panel/admin
public IActionResult Index() {
return View();
}

[HttpGet] //GET panel/admin/UsersList
public IActionResult UsersList() {
var users = _db.Users.ToList();
return View(users);
}

// Other actions like UsersList
}


The tilde (~) in [Route("~/panel/admin")] overrides the route prefix on the controller.

~

[Route("~/panel/admin")]

While using multiple routes on actions can seem powerful, it's better
to keep your application's URL space simple and well-defined. Use
multiple routes on actions only where needed, for example to support
existing clients.

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