public JsonResult GetFilterPartDetail(string Prefix, string ModelCode, int?SheetId)
        {
            try
            {
                var Vpartdetail = _BillingService.GetFilterPartDetail(Prefix, ModelCode, SheetId);

                return(Json(Vpartdetail, JsonRequestBehavior.AllowGet));
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }