Keeping AdvControlDropDown in dropdown position

Hi, I use AdvControlDropDown and it works good. In my implementation I'd like to check out onbeforeDropUp if something value is false keep the AdvControlDropDown in down position until user will fill the some field. How to keep the component in Drop down position?

Thank you for your help,


Can you try to call Abort from event OnBeforeDropUp if you want to stop it from closing up?

That works!

Thank you very much,