--- In IBObjects@yahoogroups.com, "Divo Milic" wrote:

> Hi All,
>
> I've got a TIB_Combobox on a form with:
> Style=csDropDownList
> Items= Freshman (FR) ,Sophomore (SO), Junior (JR), Senior (SR)
> ItemValues =1,2,3,4
>
> Is it possible to allow user to enter NULL value for that field ,
> and how to search NULL and NOT NULL values?
>
> I have the same problem with TIB_LookuComboBox?
>
> Thanks for any help,
> Djivo Milic

Hi Djivo!

There's at least one logical problem with your description: There is
no such thing as a NULL value, only a NULL state. And states does not
belong in ItemValues whatsoever, so I doubt it is possible to easily
do what you want.

Sorry,
Set