chart totalsDisplay is not work on "DataSelection"

Hi all

I want to show that selected four data. (Chart Property > Data Binding > Data Selection)

and then how to show  this selected data total display ?

I try to this

DS_1.setTotalsDisplay("00A01CLWSAYP8FTIBQCIGWHCX", TotalsDisplay.SHOW);

DS_1.setTotalsPosition(Axis.COLUMNS, TotalsPosition.AFTER);

CHART_1.showTotals(true);

Is it correct ?