private void btnExport_Click(object sender, EventArgs e)
{
int year = (int)this.cbLowYear.SelectedItem;
//List<ContingencyPast> cpListByYear = this.yearListCPsPairs[year];
HashSet <ContingencyPast> cpListByYear = new HashSet <ContingencyPast>();
IWorkbook workbook = DefaultExporterWorksheet.ExportCtgency13SalaryEmployeeList(cpListByYear, year);
_SaveExcelFile(workbook);
}
