public DataSet ThongKeNhanVienTaiNgay(DateTime ip_data_tai_ngay)
{
CStoredProc v_cstore = new CStoredProc("pr_f447_thong_ke_nhan_vien_dang_lam_viec");
v_cstore.addDatetimeInputParam("@ip_date_ngay_hien_tai", ip_data_tai_ngay.Date);
DataSet v_ds = new DataSet();
v_ds.Tables.Add(new DataTable());
v_cstore.fillDataSetByCommand(this, v_ds);
return v_ds;
}