public void load_du_lieu_nhan_vien_hoat_dong(DataSet op_ds, DateTime ip_dat)
{
CStoredProc v_cstore = new CStoredProc("PR_XUAT_DANH_SACH_NHAN_VIEN_HOAT_DONG");
v_cstore.addDatetimeInputParam("@IP_DAT", ip_dat);
v_cstore.fillDataSetByCommand(this, op_ds);
}