pre-select VB combo box item

easy question, can't believe I haven't been able to find the answer.

I have a drop-down combo box on a user form, runs on VB. I'd simply like the first item in the list to be pre-selected when the form initializes. I already have SetFocus to put the focus on the combo box, but that does not select the first item in the list in the combo box.

this must be easy to do..
thanks..

UPDATE: I found it -- can look something like this:

Me.id_product.ListIndex = 0