在 ASP .Net MVC C# 中可以应用过滤器的级别是什么？

using System.Web.Mvc;
namespace DemoMvcApplication.Controllers{
   public class HomeController : Controller{
      [Authorize] //Action Method Level
      public string Index(){
         return "Index Invoked";
      }
   }
}

using System.Web.Mvc;
namespace DemoMvcApplication.Controllers{
   [Authorize] //Controller Level
   public class HomeController : Controller{
      public string Index1(){
         return "Index1 Invoked";
      }
      public string Index2(){
         return "Index2 Invoked";
      }
   }
}

public class MvcApplication : System.Web.HttpApplication{
   protected void Application_Start(){
      AreaRegistration.RegisterAllAreas();
      FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
      RouteConfig.RegisterRoutes(RouteTable.Routes);
      BundleConfig.RegisterBundles(BundleTable.Bundles);
   }
}
public class FilterConfig{
   public static void RegisterGlobalFilters(GlobalFilterCollection filters){
      filters.Add(new HandleErrorAttribute());
      filters.Add(new AuthorizeAttribute());
   }
}