>Can anyone tell me how to make a combobox automatically dropdown when it gets focus? Thanks in advance.

I suppose you know what you are doing, or you have been specifically asked for a combobox that works this way ... otherwise I would ask you to please reconsider what you are doing.

Won't your users get baffled when they enter what's essentially an edit box with an arrow on the end and have the screen suddenly change it into something else? Also, a combobox works in a standard way. It's expected to work in that way no matter what application they are using (it even works in the standard way on UT).

Use a ComboBox when the user _may_ wish to select from a list of items rather than take the suggested item (or leave blank).

Use a ListBox for the opportunity to give the user an immediate visual list of options.

To use an automatically dropped down combobox to save screen space is the same as using a stone to punch in a nail because it's easier to carry than a hammer.
Look to the design of your screens. Keep within the standards, don't fight against them.

Steve