}//-------------------------------
//event is raised when the selected index is changed
private void ctlManagerOnSemesterSelectedIndexChanged()
{
_dateStart = _studentManager.GetSemesterDateStart(_studentManager.GetSemesterSystemId(this.ctlManager.SchoolYearComboBox.SelectedIndex,
this.ctlManager.SemesterComboBox.SelectedIndex)).ToShortDateString() + " 12:00:00 AM";
_dateEnd = _studentManager.GetSemesterDateEnd(_studentManager.GetSemesterSystemId(this.ctlManager.SchoolYearComboBox.SelectedIndex,
this.ctlManager.SemesterComboBox.SelectedIndex)).ToShortDateString() + " 11:59:59 PM";
_frmStudentSearch.DisableEnableButtonStudentList(_userInfo, true);
this.ShowSearchResultDialog();
}//-----------------------------