Hi, AFAIK rowIndex is always zero-based. But in SelectRangeChoiceBarRenderer .java - near line 374 - we have:
hasNextRecords = isRowAvailable(component, (int)nextValue);
where nextValue = currentValue + blockSize.
In this context, currentValue is one-based, thus there should be a
displacement in asking the model for row availability.
-- Renzo

