/** Display. Fill Editors */
  public void display(int index) {
    log.fine("Index=" + index);
    //
    m_activity = resetDisplay(index);
    //	Nothing to show
    if (m_activity == null) {
      return;
    }
    //	Display Activity
    fNode.setText(m_activity.getNodeName());
    fDescription.setValue(m_activity.getNodeDescription());
    fHelp.setValue(m_activity.getNodeHelp());
    //
    fHistory.setContent(HISTORY_DIV_START_TAG + m_activity.getHistoryHTML() + "</div>");

    //	User Actions
    MWFNode node = m_activity.getNode();
    if (MWFNode.ACTION_UserChoice.equals(node.getAction())) {
      if (m_column == null) m_column = node.getColumn();
      if (m_column != null && m_column.get_ID() != 0) {
        fAnswerList.removeAllItems();
        int dt = m_column.getAD_Reference_ID();
        if (dt == DisplayType.YesNo) {
          ValueNamePair[] values = MRefList.getList(Env.getCtx(), 319, false); // 	_YesNo
          for (int i = 0; i < values.length; i++) {
            fAnswerList.appendItem(values[i].getName(), values[i].getValue());
          }
          fAnswerList.setVisible(true);
        } else if (dt == DisplayType.List) {
          ValueNamePair[] values =
              MRefList.getList(Env.getCtx(), m_column.getAD_Reference_Value_ID(), false);
          for (int i = 0; i < values.length; i++) {
            fAnswerList.appendItem(values[i].getName(), values[i].getValue());
          }
          fAnswerList.setVisible(true);
        } else //	other display types come here
        {
          fAnswerText.setText("");
          fAnswerText.setVisible(true);
        }
      }
    }
    //	--
    else if (MWFNode.ACTION_UserWindow.equals(node.getAction())
        || MWFNode.ACTION_UserForm.equals(node.getAction())) {
      fAnswerButton.setLabel(node.getName());
      fAnswerButton.setTooltiptext(node.getDescription());
      fAnswerButton.setVisible(true);
    } else log.log(Level.SEVERE, "Unknown Node Action: " + node.getAction());

    statusBar.setStatusDB((m_index + 1) + "/" + m_activities.length);
    statusBar.setStatusLine(Msg.getMsg(Env.getCtx(), "WFActivities"));
  } //	display
  /** Save */
  public void onOK() {
    log.config("Activity=" + m_activity);
    if (m_activity == null) {
      Clients.showBusy(null, false);
      return;
    }
    int AD_User_ID = Env.getAD_User_ID(Env.getCtx());
    String textMsg = fTextMsg.getValue();
    //
    MWFNode node = m_activity.getNode();

    Object forward = null; // fForward.getValue();

    // ensure activity is ran within a transaction - [ 1953628 ]
    Trx trx = null;
    try {
      trx = Trx.get(Trx.createTrxName("FWFA"), true);
      m_activity.set_TrxName(trx.getTrxName());

      if (forward != null) {
        log.config("Forward to " + forward);
        int fw = ((Integer) forward).intValue();
        if (fw == AD_User_ID || fw == 0) {
          log.log(Level.SEVERE, "Forward User="******"CannotForward");
          trx.rollback();
          trx.close();
          return;
        }
      }
      //	User Choice - Answer
      else if (MWFNode.ACTION_UserChoice.equals(node.getAction())) {
        if (m_column == null) m_column = node.getColumn();
        //	Do we have an answer?
        int dt = m_column.getAD_Reference_ID();
        String value = fAnswerText.getText();
        if (dt == DisplayType.YesNo || dt == DisplayType.List) {
          ListItem li = fAnswerList.getSelectedItem();
          if (li != null) value = li.getValue().toString();
        }
        if (value == null || value.length() == 0) {
          FDialog.error(m_WindowNo, this, "FillMandatory", Msg.getMsg(Env.getCtx(), "Answer"));
          trx.rollback();
          trx.close();
          return;
        }
        //
        log.config("Answer=" + value + " - " + textMsg);
        try {
          m_activity.setUserChoice(AD_User_ID, value, dt, textMsg);
        } catch (Exception e) {
          log.log(Level.SEVERE, node.getName(), e);
          FDialog.error(m_WindowNo, this, "Error", e.toString());
          trx.rollback();
          trx.close();
          return;
        }
      }
      //	User Action
      else {
        log.config("Action=" + node.getAction() + " - " + textMsg);
        try {
          // ensure activity is ran within a transaction
          m_activity.setUserConfirmation(AD_User_ID, textMsg);
        } catch (Exception e) {
          log.log(Level.SEVERE, node.getName(), e);
          FDialog.error(m_WindowNo, this, "Error", e.toString());
          trx.rollback();
          trx.close();
          return;
        }
      }

      trx.commit();
    } finally {
      Clients.showBusy(null, false);
      if (trx != null) trx.close();
    }

    //	Next
    loadActivities();
    display(-1);
  } //	onOK