Assuming you are referring to the ComboBox's SelectionChangeCommitted event, no, the UltraCalendarCombo control exposes no equivalent event. If you like you can submit a feature request for the ability to receive a notification when the user commits a selection change.

Note that the control does expose a ValueChanged event; although this event fires regardless of whether the change was made by the user, if you are setting the value programmatically you might be able to set a flag or something when you do, so that you can distinguish between user changes and programmatic changes.