[转]How to use an Area in ASP.NET Core

本文转自：http://stackoverflow.com/questions/36535511/how-to-use-an-area-in-asp-net-core

Q：

How does one use an

Area

in ASP.NET Core? This is not properly documented!

Supposing I have an app that needs an Admin section. This section requires its Views to be places in that area. All requests that start with

Admin/

will need to be redirected to that area.

A：

In order to include an Area in an ASP.NET Core app, first we need to include a conventional route in the

Startup.cs

file (It's best to place it before any non-area route):

In Startup.cs/Configure method:

app.UseMvc(routes =>
{
routes.MapRoute("areaRoute", "{area:exists}/{controller=Admin}/{action=Index}/{id?}");

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

Then make a folder named

Areas

in the app root and make another named

Admin

inside the former, also make these folders inside

Admin

(ViewComponent is optional):





Now we create a controller inside the

Controllers

folder named

AdminController

, the content can be like:

[Area("Admin")]
[Route("admin")]
public class AdminController : Controller
{
public AdminController()
{
// do stuff
}

public IActionResult Index()
{
return View();
}

[Route("[action]/{page:int?}")]
public IActionResult Orders()
{
return View();
}

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

[Route("[action]/newest")]
public IActionResult Payments()
{
return View();
}
}

Now in order for that to work, you'll need to create Views for all actions that return one. The hierarchy for views is just like what you have in a non-area Views folder:





Now, you should be good to go!

Question: What if I what to have another controller inside my Area?

Answer:

Just add another controller beside

AdminController

and make sure the routes are like the following:

[Area("Admin")]
[Route("admin/[controller]")]
public class ProductsController : Controller
{
public ProductsController()
{
//
}

[Route("{page:int?}")]
public IActionResult Index()
{
return View();
}
}

The important part is

[Route("admin/[controller]")]

. With that you can keep the style of routing to

admin/controller/action/...