> 2Jason - it`s bug? Or I must always call Unprepare method
> (TIB_Grid.GridLinks work success with Prepared or Unprepared
> queryes)...

The grid is partially active while ever the dataset is prepared. If
you intend to change the query sql (to have the field so named) anyway
then unprepare because you will need to prepare again after you alter
the SQL.

So no, IMO it is not a bug. You just need to do things in the correct
order.

--
Geoff Worboys - TeamIBO
Telesis Computing