public ActionResult AddUser()
        {
            var concernId = Convert.ToInt32(Session["ConcernId"]);
            var role      = _context.UserRoles.Where(x => x.ConcernId == 1).ToList();
            RoleUserViewModels viewModels = new RoleUserViewModels()
            {
                UserRoles = role
            };

            return(View(viewModels));
        }
        public ActionResult EditUserRole(int id)
        {
            var concernId = Convert.ToInt32(Session["ConcernId"]);
            var role      = _context.UserRoles.Where(x => x.ConcernId == 1).ToList();
            var user      = _context.SystemUsers.FirstOrDefault(x => x.UserID == id);
            RoleUserViewModels viewModels = new RoleUserViewModels()
            {
                UserRoles  = role,
                SystemUser = user
            };

            return(View(viewModels));
        }