Unwanted combobox scrolling up

Hello,
There is a way to close a combobox through its properties or another way??
The problem is that when we create a new record in the foundset a combobox that shows one field of the record, scrollup by himself and this behavior is not so nice for the user.
Thanks

A parner helped me to solve it
I put it here maybe is usefull for someone.
The combobox scrollup because it is the first element of the form (Tab sequence)
if i put as first other element but not the combobox, it keep closed

You can also set the focus to another element in code:

elements.yourfield.requestFocus()

Or another option is to change the tabsequence of your form, see the “Tab sequence” tab on the bottom of your form in developer.