Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
Expand Minimize

How to: Identify a Meeting Item as a Counter-Proposal to a Prior Meeting Request

Office 2007

This topic shows how to use the named property, dispidApptCounterProposal, and the Outlook object model to identify a MeetingItem object as a counter proposal to a prior meeting request.

In the Outlook object model, all types of items, such as a mail item and a contact item, correspond to specific message classes. In particular, responses to a meeting request can be identified by the following message classes:

  • IPM.Schedule.Meeting.Resp.Neg for a decline response
  • IPM.Schedule.Meeting.Resp.Pos for an acceptance response
  • IPM.Schedule.Meeting.Resp.Ten for a tentative response

However, the Outlook object model does not provide a means to identify a response as the fourth possible response to a meeting request, which is a counter-proposal.

Using the PropertyAccessor object and the PSETID_Appointment namespace definition of dispidApptCounterProposal, you can program within the object model to distinguish all responses of a meeting request item. The following code sample in C# shows how to get the property value given a meeting item. Note that in the code sample, the named property is expressed as:

where {00062002-0000-0000-C000-000000000046} is the PSETID_Appointment namespace and 8257000B is the property tag of dispidApptCounterProposal.
private bool IsCounterProposal(Outlook.MeetingItem meeting)
    const string counterPropose =
    Outlook.PropertyAccessor pa = meeting.PropertyAccessor;
    if ((bool)pa.GetProperty(counterPropose))
        return true;
        return false; 

Community Additions

© 2015 Microsoft