Formatting a data field in a pivot table

[JBonavita]

We need to format the data fields in a pivot table as we create it.
I've trying:
FieldSettings fieldSettings = dataField.getFieldSettings();
NumberFormat nf = fieldSettings.getNumberFormat();
nf.setCustomFormat("#,###.##;;;");
dataField.setFieldSettings(fieldSettings);

But there resulting pivot table doesn't have any formatting applied.

Any ideas?

Thanks,
Joe

[JBonavita]

I found an example here:
http://www.birt-exchange.org/documen...10.html#140909