public async Task <IActionResult> Add(OrderStatusModel model) { if (!ModelState.IsValid) { return(Json(new DataSourceResult { Errors = ModelState.SerializeErrors() })); } var status = new OrderStatus(); status = model.ToEntity(status); status.StatusId = (await _orderStatusService.GetAll()).Max(x => x.StatusId) + 10; await _orderStatusService.Insert(status); return(new JsonResult("")); }