Narcis, I tried this code snippet below: procedure TSAICPremiumFrm.TeeChartReportBeforePrint(Sender: TObject); begin ppDPTeeChart1.Chart.Series[1].XValues.Order:=loDescending; ppDPTeeChart1.Chart.Refresh; end; But, I get [Error] MainUnit.pas(1121): Undeclared identifier: 'loDescending' when I compil...