Combo Box Key Combination

Bill Vlahos bvlahos at
Tue Mar 25 23:28:08 EDT 2008

I have a combo box button in a series of fields. The user can tab into  
the field part of the combo box button and type what they want or they  
can mouse click the arrow part of the button and get the list of items  
to pick from. Usually the user will pick from the list but this gives  
the option to enter something not in the list.

Is it possible to allow the user to only use the keyboard for this?  
For example, once the user tabs (or clicks) in the field part of the  
button could they press a key (such as Enter), then navigate the items  
with the arrow keys and then tab out?

An even better solution would be as the user types in the field part  
of the button it autofills if there is a choice that matches. I've  
seen some web browsers do this for popup fields and it is pretty  

This way they wouldn't have to take their fingers off the keyboard but  
still get the option to pick from the list.

I don't see anywhere in the docs that describe something like this.

Bill Vlahos

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