public ActionResult Add(ListType listType)
        {
            if (ModelState.IsValid)
            {
                var errors = _listTypeService.ValidateListType(listType);
                if (!errors.Any())
                {
                    _listTypeService.Add(listType);

                    return(RedirectToAction("Manage"));
                }
                ModelState.Merge(errors);
            }

            return(View(listType));
        }