public ActionResult NavPrevious(int Id = 0)
        {
            AlertModel alertModel;

            alertService = new AlertService();

            alertModel = alertService.NavPrevious(Id);
            if (alertModel != null)
            {
                alertModel._FormMode = FormModeEnum.Edit;
            }

            if (alertModel == null)
            {
                //alertModel = alertService.GetNewModel();
                throw new Exception("[VALIDATION]-Data not exists");
            }

            return(PartialView(VIEW_FORM_PARTIAL, alertModel));
        }