private void barbtnOutlookExportSingle_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
 {
     #region #ExportSelectedAppointments
     AppointmentBaseCollection apts = schedulerControl1.SelectedAppointments;
     if (apts != null)
     {
         SchedulerStorage storage = new SchedulerStorage();
         foreach (Appointment apt in apts)
         {
             Appointment aptCopy = apt.Copy();
             storage.Appointments.Add(aptCopy);
         }
         storage.ExportToOutlook();
     }
     #endregion #ExportSelectedAppointments
 }