Getting Room Appointments Efficiently from Exchange
I need to be able to get appointment data from meeting rooms using the Exchange Managed API. I have had a service running for about a month that serves this purpose just fine by using
ExchangeService.GetUserAvailability() as follows:
private IEnumerable<CalendarEvent> GetEvents(ExchangeService ExchangeService, string room, DateTime time, DateTime end)
List<AttendeeInfo> attendees = new List<AttendeeInfo>();
end = new DateTime(time.Ticks + Math.Max(end.Ticks - time.Ticks, time.AddDays(1).Ticks - time.Ticks));
AttendeeInfo roomAttendee = new AttendeeInfo();
roomAttendee.AttendeeType = MeetingAttendeeType.Room;
roomAttendee.SmtpAddress = GetEmailAddress(room);
Collection<CalendarEvent> events = ExchangeService.GetUserAvailability(
new TimeWindow(time, end),
return (from e in events
where e.EndTime > time
However, I have recently had to extend this service to perform some other tasks that have required larger spans of time (gone from one day to several months). This method becomes highly inefficient with an increase in time, and can occasionally throw errors when there are too many results.
Is this the most efficient way of going about this? I have found no better ways, but I would be grateful for confirmation.
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