（LIST1）

WBool Form1::optb_1_Click(
  WObject *     source,
  WEventData *  event )
{
    dw_1->Modify("dept_head_id.DDDW.Name = 'd_dddw_emp_by_dept'" );
    dw_1->Modify("dept_head_id.DDDW.PercentWidth= 450");
    _dwChild = dw_1->GetChild("dept_head_id");
    _dwChild.SetConnectOpen (WTAMReadWrite,
    transaction_1->GetEnvironmentHandle(),
    transaction_1->GetConnectionHandle(),
    (WVariant) transaction_1->GetConnectParams());
    if (dw_1->RowCount() > 0) {
      dw_1_RowFocusChanged();
    }
    return FALSE;
}

WBool Form1::optb_2_Click(
  WObject *  source,
  WEventData * event )
{
    dw_1->Modify("dept_head_id.DDDW.Name = 'd_dddw_empsal_by_dept'" );
    dw_1->Modify("dept_head_id.DDDW.PercentWidth= 600");
    _dwChild = dw_1->GetChild("dept_head_id");
    _dwChild.SetConnectOpen (WTAMReadWrite,
    transaction_1->GetEnvironmentHandle(),
    transaction_1->GetConnectionHandle(),
    (WVariant) transaction_1->GetConnectParams());
    if (dw_1->RowCount() > 0) {
      dw_1_RowFocusChanged();
    }
    return FALSE;
}

（LIST2）

WBool Form1::cb_filter_Click(
    WObject *       source,
    WEventData *    event )
{
    WString     filterString;
    filterString.Clear();
    _dwChild.SetFilter (filterString);
    dw_1_RowFocusChanged ();
    return FALSE;
}

（LIST3）

WBool Form1::cb_sort_Click(
    WObject *      source,
    WEventData *   event )
{
    WString     sortString;
    sortString.Clear();
    _dwChild.SetSort (sortString);
    dw_1_RowFocusChanged ();
    return FALSE;
}