How to register areas for routing

Question

I created MVC Application that have 3 different Area. (Admin, User, News) This is my RouteConfig.cs File in App_Start directory:

public class RouteConfig
{
          


        

Answer 1

From the code provided I can see 2 potential issues:

1. You aren't calling RegisterAllAreas
2. You don't appear to be overriding the AreaName property

Try changing your code to:

Global.asax

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    AreaRegistration.RegisterAllAreas();
    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional },
        namespaces: new[] { "TestMvcApplication.Controllers" }
    );
}

Admin area

public class AdminAreaRegistration : AreaRegistration
{
    public override string AreaName
    {
        get
        {
            return "Admin";
        }
    }

    public override void RegisterArea(AreaRegistrationContext context)
    {
        context.MapRoute(
            "Admin_default",
            "Admin/{controller}/{action}/{id}",
            new { controller = "Home", action = "Index", id = UrlParameter.Optional }
        );
    }
}

Answer 2

Just create a static class name it AreaConfig with a static method RegisterAreas() here code:

public static class AreaConfig
{
    public static void RegisterAreas()
    {
        // 
        // Admin area . . .

        var adminArea = new AdminAreaRegistration();
        var adminAreaContext = new AreaRegistrationContext(adminArea.AreaName, RouteTable.Routes);
        adminArea.RegisterArea(adminAreaContext);


        // 
        // Default area . . .

        var defaultArea = new DefaultAreaRegistration();
        var defaultAreaContext = new AreaRegistrationContext(defaultArea.AreaName, RouteTable.Routes);
        defaultArea.RegisterArea(defaultAreaContext);
    }
}

then call it in a Global.asax.cs file like this:

protected void Application_Start()
    {
        . . .

        AreaConfig.RegisterAreas();

        . . .
    }

Answer 3

Call AreaRegistration.RegisterAllAreas() somewhere in your RegisterRoutes

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    AreaRegistration.RegisterAllAreas();
    ....
}

Tip: Use a tool like RouteDebugger 2.0 or Routing Debugger to investigate your routes

Get latest NuGet: Route Debugger for MVC or RouteDebugger for WepApi

Here's a tutorial on How to set up and use RouteDebugger with WebApi