public DataTable QueryGift(string Item, string Period, string PurchaseNo) { try { DBO.MaintainAcceptDBO dbo = new DBO.MaintainAcceptDBO(ref USEDB); ArrayList QueryParameter = new ArrayList(); QueryParameter.Clear(); QueryParameter.Add(Item); QueryParameter.Add(Period); QueryParameter.Add(PurchaseNo); return dbo.GetGiftData(QueryParameter); } catch (Exception ex) { throw ex; } }