Enter value directly to COMBO BOX

[rickyfong]

I have created a combo box for user to select the list name in the box list and then retrieve relevant information. However, recently I would like to enter a defined value which is one of the value in the box list directly to the combo box, and then requery, and finally could show me the retrieved information. But it wouldn't work as I have also tried to define the value as combo box default value and then requery. Any idea?? Thanks a lot!!