I often use a listbox to provide navigation on a BO. I.e. the listbox displays the available records, by name. The user clicks an item in the listbox and they are navigated to that record in the BO. I have a nice component that manages it.



I've recently run into the problem that if the user is editing a record, then clicks on the list while still in the editing mode, weirdness follows. So, I'd like to check if the BO is in editing mode BEFORE the selected item of the listbox changes. This way I can prompt the user to deal with any changes made. Unfortunately, I can't seem to find an event for a listbox that occurs BEFORE the selected item is changed. Is there one? Any suggestions would be appreciated!