/// <summary>
/// Applies the appropiate rule to the meeting parameter
/// </summary>
/// <param name="meetingItem">The meeting that needs processing</param>
/// <param name="rule">the associated decline rule for the folder of this meetingItem</param>
private static void ProcessRule(MeetingItem meetingItem, DeclineRuleSetting rule)
{
// if it's a Cancelation, delete it from calendar
if (meetingItem.Class == OlObjectClass.olMeetingCancellation)
{
if (meetingItem.GetAssociatedAppointment(false) != null)
{
meetingItem.GetAssociatedAppointment(false).Delete(); return;
}
meetingItem.Delete(); return; // if deleted by user/app, delete the whole message
}
// get associated appointment
AppointmentItem appointment = meetingItem.GetAssociatedAppointment(false);
string globalAppointmentID = appointment.GlobalAppointmentID;
// optional, send notification back to sender
appointment.ResponseRequested &= rule.SendResponse;
// set decline to the meeting
MeetingItem responseMeeting = appointment.Respond(rule.Response, true);
// https://msdn.microsoft.com/en-us/VBA/Outlook-VBA/articles/appointmentitem-respond-method-outlook
// says that Respond() will return a new meeting object for Tentative response
// optional, add a meesage to the Body
if (!String.IsNullOrEmpty(rule.Message))
{
(responseMeeting ?? meetingItem).Body = rule.Message;
}
// send decline
//if(rule.Response == OlMeetingResponse.olMeetingDeclined)
(responseMeeting ?? meetingItem).Send();
// and delete the appointment if tentative
if (rule.Response == OlMeetingResponse.olMeetingTentative)
{
appointment.Delete();
}
// after Sending the response, sometimes the appointment doesn't get deleted from calendar,
// but appointmnent could become and invalid object, so we need to search for it and delete it
AppointmentItem newAppointment = (AppointmentItem)Globals.AddIn.Application.Session.GetDefaultFolder(OlDefaultFolders.olFolderCalendar).Items
.Find("@SQL=\"http://schemas.microsoft.com/mapi/id/{6ED8DA90-450B-101B-98DA-00AA003F1305}/00030102\" = '"
+ globalAppointmentID + "' ");
if (newAppointment != null)
{
newAppointment.Delete();
}
}