public DataTable SaveSalesReturn(DataTable dtPrdList) { SalesOrderDAL salesOrder = new SalesOrderDAL(); try { LumexDBPlayer db = LumexDBPlayer.Start(true); DataTable dt = salesOrder.SaveSalesReturn(this, dtPrdList, db); db.Stop(); return dt; } catch (Exception) { throw; } finally { salesOrder = null; dtPrdList = null; } }