OL2000: Incorrect Start Dates for Shared Recurring Appointments (232534)

MORE INFORMATION

The problem does not occur in Visual Basic Scripting Edition (VBScript) since all variables are inherently late-bound. However, this problem can occur if you use Outlook Visual Basic for Applications or automate Outlook from another application that supports early binding.

This problem did not occur in Microsoft Outlook 97 and was introduced in Outlook 98 (8.5). The problem was fixed in later versions of Outlook 98, but for the correct start times to be returned, you must use early binding of the AppointmentItem object variable.

With respect to this problem, no changes have been made to Outlook 2000, which still requires the AppointmentItem variable to be late-bound.

Steps to Reproduce Problem

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1. Create a new recurring appointment in someone else's calendar. Do not use a second account you may have on the Microsoft Exchange Server. The other calendar must be on a computer with completely different Exchange or Microsoft Windows NT logon.
2. Set the Subject of the appointment to test recur.
3. Right-click the Calendar folder, and then click Properties. Click the Permissions tab, and give yourself Reviewer permissions.
4. On your computer, run the following Visual Basic or Visual Basic for Applications automation code after setting a reference to the Microsoft Outlook 9.0 Object Library:

   Sub TestRecur()
      Dim Recip As Outlook.Recipient
      Dim fldr As Outlook.MAPIFolder
      Dim CalItems As Outlook.Items
      Dim ResItems As Outlook.Items
      Dim Appt As Outlook.AppointmentItem
            
      Set ol = New Outlook.Application
      Set olns = ol.GetNamespace("MAPI")
      ' Change "emailname" to the other person's e-mail name.
      Set Recip = olns.CreateRecipient("emailname")
      Set fldr = olns.GetSharedDefaultFolder(Recip, olFolderCalendar)
      Set CalItems = fldr.Items
      CalItems.Sort "[Start]"
      CalItems.IncludeRecurrences = True
      Set ResItems = CalItems.Restrict("[Subject] = 'test recur'")
      For Each Appt In ResItems
         Debug.Print Appt.Start
      Next
   End Sub
   					

5. Display the Immediate Window in the Visual Basic editor.

To have the above code return the correct start times for recurring appointments, change the following line of code

Dim Appt As Outlook.AppointmentItem
				

Dim Appt As Object
				

so that the Appt variable is late-bound.

NOTE: You may also experience the problem when you refer to the properties of the parent series (such as AllDayEvent) rather than to the properties of each occurrence (Subject, Start, End).

In this situation and if you need to refer to parent series properties, do the following: After you access the occurrence properties, set a separate early-bound object variable to the late-bound object in the code sample above. Refer to series properties from the second early-bound object variable.