/// <summary>
        /// Will retrieve the classes for the exclusive check-in combo
        /// </summary>
        public void GetDataForClassCombo()
        {
            GetDataForClassComboFromServiceDelegate fetcher =
                new GetDataForClassComboFromServiceDelegate(GetDataForClassComboFromService);

            fetcher.BeginInvoke(null, null);
        }
        /// <summary>
        /// Will retrieve the classes for the class combo boxes
        /// </summary>
        /// <param name="departmentId"></param>
        /// <param name="fromCombo"></param>
        public void GetDataForClassCombo(Guid departmentId, bool fromCombo)
        {
            GetDataForClassComboFromServiceDelegate fetcher =
                new GetDataForClassComboFromServiceDelegate(GetDataForClassComboFromService);

            fetcher.BeginInvoke(departmentId, fromCombo, null, null);
        }