[Lazarus] How to use DBCombobox

[Koenraad Lelong]

Hi,

I'm trying to use a DBCombobox, but I don't know how to show all 
records. Only the first record shows.
What I did :
Put an IBConnection on the form. Fill in the details.
Put an SQLTransaction on the form.
Put an SQLQuery on the form and fill in the details about the table to use.
Put a Datasource on the form.
Put a DBCombobox on the form.
To test I put a DBGrid on the form.
When I activate the SQL, I see some records filling the grid and the 
first record in the DBCombobox.
When I run the application, I can navigate to all records in the grid 
and I see the first record in the DBCombobox. But the drop down of the 
DBCombobox shows nothing so I can't select other records than the first.

I'm using Lazarus 0.9.30.4 with FPC 2.6.0.

What am I missing ?

Regards,

Koenraad Lelong.