How to do paging with Exchange Web Services CalendarView

Question

If I do this:

_calendar = (CalendarFolder)Folder.Bind(_service, WellKnownFolderName.Calendar);

var findResults = _calendar.FindAppointments(
    new CalendarVie         


        

Answer 1

You can use ItemView and SearchFilter to query appointments:

var itemView = new ItemView(100, 0);
itemView.PropertySet = new PropertySet(BasePropertySet.IdOnly,
    ItemSchema.Subject, AppointmentSchema.Start, AppointmentSchema.End);

var filter = new SearchFilter.SearchFilterCollection(LogicalOperator.And,
    new SearchFilter.IsEqualTo(ItemSchema.ItemClass, "IPM.Appointment"),
    new SearchFilter.IsGreaterThanOrEqualTo(AppointmentSchema.Start, startDate),
    new SearchFilter.IsLessThan(AppointmentSchema.Start, endDate));

bool moreAvailable = true;
while (moreAvailable)
{
    var result = _service.FindItems(WellKnownFolderName.Calendar, filter, itemView);

    foreach (var appointment in result.OfType())
    {
        DateTime start = appointment.Start;
        DateTime end = appointment.End;
        string subject = appointment.Subject;

        // ...
    }

    itemView.Offset += itemView.PageSize;
    moreAvailable = result.MoreAvailable;
}