RecurrenceState Property

Microsoft Outlook Visual Basic

Returns an OlRecurrenceState constant indicating the recurrence property of the specified object. Read-only.

OlRecurrenceState can be one of these OlRecurrenceState constants.
olApptException
olApptMaster
olApptNotRecurring
olApptOccurrence

expression.RecurrenceState

expression    Required. An expression that returns an AppointmentItem object.