OL2000: Incorrect Start Dates for Shared Recurring Appointments

ID: Q232534

The information in this article applies to:

Microsoft Outlook 2000

SYMPTOMS

You programmatically retrieve recurring appointments from someone else's calendar using the Outlook object model, and the start dates for all of the recurring appointments are the same.

CAUSE

The person did not give you full permissions to their Calendar folder

-and-

In your code, you used early binding on the AppointmentItem object variable.

RESOLUTION

Late bind the AppointmentItem object variable. An example is provided after the "Steps to Reproduce Problem" section.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

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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http://www.microsoft.com/mcsp/

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http://www.microsoft.com/support/supportnet/overview/overview.asp

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.

Set the Subject of the appointment to test recur.

Right-click the Calendar folder, and then click Properties. Click the Permissions tab, and give yourself Reviewer permissions.

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

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

to


Dim Appt As Object

so that the Appt variable is late-bound.

REFERENCES

For additional information about available resources and answers to commonly asked questions about Microsoft Outlook 2000 solutions, please see the following article in the Microsoft Knowledge Base:

Q146636 OL2000: Questions About Custom Forms and Outlook Solutions

Additional query words: OutSol OutSol2000

Keywords : kbdta
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbbug