private void xuat_excel_bang_luong()
{
string v_str_file_name = "SOAN_THAO_BL" + lay_thang() + lay_nam() + "_Bang luong dang soan thao thang " + lay_thang() + "-" + lay_nam() + CHRMCommon.gen_version();
CHRMCommon.ExportExcelWithFileName(m_grv_main, v_str_file_name);
}