} //-----------------------------------

        //event is raised when the school year selected index is changed
        private void ctlManagerOnSchoolYearSelectedIndexChanged()
        {
            _dateStart = _specialManager.GetSchoolYearDateStart(_specialManager.GetSchoolYearYearId(ctlManager.SchoolYearIndex)).ToShortDateString() +
                         " 12:00:00 AM";
            _dateEnd = _specialManager.GetSchoolYearDateEnd(_specialManager.GetSchoolYearYearId(ctlManager.SchoolYearIndex)).ToShortDateString() + " 11:59:59 PM";

            this.UpdateSpecialClassDataByDateStartEnd();

            _specialManager.InitializeSemesterCombo(this.ctlManager.SemesterComboBox, this.ctlManager.SchoolYearIndex);

            this.ShowSearchResultDialog();
        } //-----------------------------------