ComboBoxItem - how to handle selection changes

[paco]

Hello,

I'm using SmartGWT Pro 2.4.

I have a ComboBoxItem with setAddUnknownValues(false).

I want to have a callback when combo box item selection gets changed. How to do this ?

FYI: onChanged(ChangedEvent event) is not fired, when setAddUnknownValues(false)....

Best Regards