By default, the ShowAllDayHeader property is False. Use the ShowAllDayHeader property to show the All-Day header, so all All-Day events are displayed on this header instead in the time scale section of the schedule view. The AllDayEvent property indicates whether the event is an All-Day event. Clicking the All-Day header makes the control to add a new All-Day event when user drops the mouse to a new position. The AllowUpdateAllDayFlag property specifies whether the event's AllDayEvent property is changed when the user drags an event from All-Day header to Time-Scale or reverse. The AllowUpdateAllDayFlag property on False indicates that the user can not drag an All-Day event to Time-Scale and reverse. The HeaderAllDayEventHeight property specifies the height of the events to be displayed in the All-Day header. The AllowAllDayEventScroll property gets or sets a value that specifies whether the all-day event header supports scrolling.

The following screen shot shows the All-Day events on the All-Day header ( ShowAllDayHeader property is True ):

 

The following screen shot shows the All-Day events on the All-Day header ( ShowAllDayHeader property is False ):