dropdownlist and objectdatasource

[Guest]

hey all,
i created a typed dataset for my objectdatasource, which in turn will bind
to my dropdownlist. in the typed dataset i created an expression column
called fullname which is simply FirstName column + LastName column.

i can preview the dataset and everything looks normal. however when i bind
the objectdatasource to the dropdownlist there's no data. it's like the
binding is taking place before the fullname gets populated. any ideas?

thanks,
rodchar