public BillValiditions GetOrderHeaderReferances(QueryArgument queryArgument) { BillValiditions billValidations; try { TransactionReadHelper.QueryArgument = queryArgument; billValidations = TransactionReadHelper.GetOrderHeaderReferances(); } catch (Exception ex) { EventLogger.LogEvent(SysEventType.ERROR.ToString(), "Error", "GetOrderHeaderReferances Data failed with exception", ex); throw; } return(billValidations); }