设置控制器中操作名称被覆盖的路由

Question

我需要将cultureRoute Route链接到用[Route（“{urlSlug}”）]属性修饰的控制器中的各种方法。

这是我的RouteConfig文件

using System.Web.Mvc;
using System.Web.Mvc.Routing.Constraints;
using System.Web.Routing;

namespace Site.Web
{
    public class RouteConfig
    {
        public static void RegisterRoutes(RouteCollection routes)
        {
            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapMvcAttributeRoutes();

        routes.MapRoute(
            name: "cultureRoute",
            url: "{culture}/{controller}/{urlSlug}",
            defaults: new { controller = "Home", urlSlug = UrlParameter.Optional },
            constraints: new
            {
                culture = new RegexRouteConstraint("^[a-z]{2}(?:-[A-Z]{2})?$")
            });

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{urlSlug}",
            defaults: new { culture = "en-GB", controller = "Home", action = "Index", urlSlug = UrlParameter.Optional }
        );
    }
}

}

我的大多数控制器都有这种结构

    [RoutePrefix("Branded")]
    public class BrandedController : ControllerBase
    {
        [KenticoCacheFilter]
        public async Task<ActionResult> Index()
        {   
            return View("../../Views/Project/Index", viewModel);
        }

        [Route("{urlSlug}")]
        public async Task<ActionResult> Project(string urlSlug)
        {
            return View("../../Views/Project/Individual", viewModel);
        }

        // Or 

        [Route("{urlSlug}")]
        public async Task<ActionResult> Article(string urlSlug)
        {
            return View("../../Views/Project/Individual", viewModel);
        }

    }

那么，如何将Project（）或Article（）方法链接到CultureRoute，因为它需要在RouteConfig中显式设置方法？