public ActionResult Configuration(int id = 0)
        {
            if (id == 0)
            {
                return(HttpNotFound());
            }

            var menuVMs = RoleManagement.GetPagesForSelectedRole(id).ToList();

            ViewBag.RoleID   = id;
            ViewBag.RoleName = RoleManagement.GetRoleNameById(id);

            return(View(menuVMs));
        }