You have to first find the recurring item, then get the RecurrencePattern
object for it, then get an individual AppointmentItem occurrence by the
GetOccurenceMethod, then change the Start and/or End dates to make it an
Exception. Then use the Exceptions collection from the RecurrencePattern to
get that particular Exception object.
Here's an example from the VBA help file:
Public Sub cmdExample()
Dim myOlApp As Outlook.Application
Dim myApptItem As Outlook.AppointmentItem
Dim myRecurrPatt As Outlook.RecurrencePattern
Dim myNamespace As Outlook.NameSpace
Dim myFolder As Outlook.MAPIFolder
Dim myItems As Outlook.Items
Dim myDate As Date
Dim myOddApptItem As Outlook.AppointmentItem
Dim saveSubject As String
Dim newDate As Date
Dim myException As Outlook.Exception
Set myOlApp = New Outlook.Application
Set myApptItem = myOlApp.CreateItem(olAppointmentItem)
myApptItem.Start = #2/2/2003 3:00:00 PM#
myApptItem.End = #2/2/2003 4:00:00 PM#
myApptItem.Subject = "Meet with Boss"
'Get the recurrence pattern for this appointment
'and set it so that this is a daily appointment
'that begins on 2/2/03 and ends on 2/2/04
'and save it.
Set myRecurrPatt = myApptItem.GetRecurrencePattern
myRecurrPatt.RecurrenceType = olRecursDaily
myRecurrPatt.PatternStartDate = #2/2/2003#
myRecurrPatt.PatternEndDate = #2/2/2004#
myApptItem.Save
'Access the items in the Calendar folder to locate
'the master AppointmentItem for the new series.
Set myNamespace = myOlApp.GetNamespace("MAPI")
Set myFolder = myNamespace.GetDefaultFolder(olFolderCalendar)
Set myItems = myFolder.Items
Set myApptItem = myItems("Meet with Boss")
'Get the recurrence pattern for this appointment
'and obtain the occurrence for 3/12/03.
myDate = #3/12/2003 3:00:00 PM#
Set myRecurrPatt = myApptItem.GetRecurrencePattern
Set myOddApptItem = myRecurrPatt.GetOccurrence(myDate)
'Save the existing subject. Change the subject and
'starting time for this particular appointment
'and save it.
saveSubject = myOddApptItem.Subject
myOddApptItem.Subject = "Meet NEW Boss"
newDate = #3/12/2003 3:30:00 PM#
myOddApptItem.Start = newDate
myOddApptItem.Save
'Get the recurrence pattern for the master
'AppointmentItem. Access the collection of
'exceptions to the regular appointments.
Set myRecurrPatt = myApptItem.GetRecurrencePattern
Set myException = myRecurrPatt.Exceptions.item(1)
'Display the original date, time, and subject
'for this exception.
MsgBox myException.OriginalDate & ": " & saveSubject
'Display the current date, time, and subject
'for this exception.
MsgBox myException.AppointmentItem.Start & ": " & _
myException.AppointmentItem.Subject
End Sub
