Open Recurring Item Window
An EditOccurrenceWindow class instance. The dialog is invoked when the end-user attempts to edit an appointment’s appointment recurring instance.
To substitute the default window with a custom descendant, use the OptionsWindows.EditOccurrenceWindowType property or handle the SchedulerControl.EditOccurrenceWindowShowing event.
Refer to the How to: Customize Editing and Recurrence Dialogs tutorial for more information on how to create a custom recurrence dialog.