constants ChangeOperationEnum
The ChangeOperationEnum type specifies the operation performed in the scheduler control. The ChangeEvent event occurs when one of the following operation occurs. The ChangeOperationEnum type supports the following values:

NameValueDescription
exAddEvent0 Notifies once a new event is added to the scheduler. The ChangeEvent(exAddEvent) event is equivalent with the AddEvent event.
exRemoveEvent1 Notifies once an event is removed from the scheduler. The ChangeEvent(exRemoveEvent) event is equivalent with the RemoveEvent event.
exUpdateEvent16 Notifies once any known properties of the event ( like start or ending position ) is updated. The exUpdateEvent flag is combined with one of the EventKnownPropertyEnum value  depending on what property has been changed. For instance, the exUpdateEvent + exEventEndDateTime (16 + 2 = 18 ) indicates that the ending position of the event is changed, or the end margin of the event was resized.