Michel,
You need to determine a 'default' setting. If the combo is bound to a table, replace the field with something - the first item in the combo list, etc...
If the combo is not bound, just select the first item: combo.ListIndex = 1.

HTH!
Mark

>hi
>
>When form open combobox is empty. All item are there when we open combobox but I want that the first item appear when the form open. User don't want to see an empty combobox.
>
>Michel