listbox onControlClicked

Is there an event that fires before the selected item in a listbox changes? I am using onControlClicked to fire some other functions when the a list item is selected, but now I have a need to add a condition to what gets fired depending on the value of the selected item. So far, when I select the item and my condition is met the selected item still changes.

Any thoughts??

Just found onCurrentItemChanging. This may be what I am looking for, but the problem remains. Is there a way to pause the change event if my condtion is met?

I think I am happy with onCurrentItemChanging. This allows me to still use the currently selected item and do what I need to do with it while the list also switches to the new item that the user clicked on.

Please let me know if there is a better way to do this.

Thanks.