Is It Possible to Query the List In ComboBox Letter By Letter? If Yes, How?

I have a problem with combobox because I need to query the list simultaneously when the user starts to type. For example, let's say in a "Countries" combobox, when the user types 'p', the list must point or rather highlight automatically to the first country with letter 'p' or if the user types 'ph', it will point to a country with 'ph'. If you have sample codes, keywords, or some recommended sites to solve this problem, it will be very much appreciated. Thnx.

[480 byte] By [Nicegoodspeeda] at [2007-10-3 3:20:43]