How to use

setOutputMarkupId

method

in

org.apache.wicket.markup.html.panel.Panel

 private void changePanel() {
  Panel newpanel = getNewPanel(); // Or pass as arg to this function
  newpanel.setOutputMarkupId(true);
  currentpanel.replaceWith(newpanel);
  currentpanel = newpanel;
  target.add(currentpanel);
}

public void setContainer(Panel panel){
  add(panel);
  panel.setOutputMarkupId(true);
}

  @Override
  public void onClick() {
    try {
      Panel newPanel = webtaskboxService.getTaskPanel(task, "taskPanel");
      newPanel.setOutputMarkupId(true);
      panel.replaceWith(newPanel);
      panel = newPanel;
    } catch (TaskboxException e) {
      LOGGER.error("Taskbox panel could not be started", e);
    }
  }
};

private void removeDrawer(MarkupContainer previous, AjaxRequestTarget target) {
  Panel panel = new EmptyPanel("next");
  panel.setOutputMarkupId(true);
  previous.addOrReplace(panel);
  target.add(panel);
}

  @Override
  protected void populateItem(ListItem<Pair<String, Integer>> item) {
    Panel panel = tabMap.get(item.getModelObject());
    if (item.getIndex() == 0) {
      panel.add($b.classAppender("active"));
    }
    item.add(panel);
    panel.setOutputMarkupId(true);
  }
};

  @Override
  protected void populateItem(ListItem<Pair<String, Integer>> item) {
    Panel panel = tabMap.get(item.getModelObject());
    if(item.getIndex() == 0){
      panel.add($b.classAppender("active"));
    }
    item.add(panel);
    panel.setOutputMarkupId(true);
  }
};

public void removeItem(AjaxRequestTarget target){
  Panel panel = new EmptyPanel("container");
  addOrReplace(panel);
  panel.setOutputMarkupId(true);
  panel.setVisible(false);
  target.add(panel);
}

flowPanel.setOutputMarkupId(true);
contentPanel.replaceWith(flowPanel);
contentPanel= flowPanel;

annotationDocumentStatusTable = new DefaultDataTable("rsTable", columns,
    provider, 20);
annotationDocumentStatusTable.setOutputMarkupId(true);
monitoringDetailForm.add(annotationDocumentStatusTable);

annotationDocumentStatusTable = new DefaultDataTable("rsTable", columns,
    provider, 20);
annotationDocumentStatusTable.setOutputMarkupId(true);
monitoringDetailForm.add(annotationDocumentStatusTable);

  public Details(final SchemaTO modelObject) {
    AjaxDropDownChoicePanel<SchemaType> kind =
        new AjaxDropDownChoicePanel<>("kind", getString("kind"), new Model<>());
    kind.setChoices(Arrays.asList(SchemaType.values()));
    kind.setOutputMarkupId(true);
    kind.setModelObject(schemaType);
    kind.setEnabled(false);
    add(kind);
    Panel detailsPanel;
    switch (schemaType) {
      case DERIVED:
        detailsPanel = new DerSchemaDetails("details", (DerSchemaTO) modelObject);
        break;
      case VIRTUAL:
        detailsPanel = SyncopeWebApplication.get().getVirSchemaDetailsPanelProvider().
            get("details", (VirSchemaTO) modelObject);
        break;
      case PLAIN:
      default:
        detailsPanel = new PlainSchemaDetails("details", (PlainSchemaTO) modelObject);
    }
    detailsPanel.setOutputMarkupId(true);
    add(detailsPanel);
  }
}

content.setOutputMarkupId(true);
contents.add(content);
WebMarkupContainer title = new WebMarkupContainer(TAB_PANEL_ID+"-title"+i);

treePanel.setOutputMarkupId(true);
add(treePanel);

treePanel.setOutputMarkupId(true);
add(treePanel);

public BaseModal(final String id) {
  super(id);
  form = new Form<>(FORM);
  form.setOutputMarkupId(true);
  add(form);
  content = new AbstractModalPanel<T>(this, null) {
    private static final long serialVersionUID = 1L;
  };
  content.setOutputMarkupId(true);
  form.add(content);
  useCloseHandler(true);
  this.windowClosedCallback = null;
  components = new ArrayList<>();
  // Note: not adding this would imply adding WebjarsJavaScriptResourceReference about JQuery resizable and mouse
  // add(new Resizable().withChildSelector(".modal-content"));
  // Note: not adding this would imply adding of WebjarsJavaScriptResourceReference about JQuery draggable
  add(new Draggable(new DraggableConfig().withHandle(".modal-header").withCursor("move")));
  defaultModalCloseButton = new DefaultModalCloseButton();
  addButton(defaultModalCloseButton);
  setUseKeyboard(true);
  setFadeIn(true);
}

 treePanel.setOutputMarkupId(true);
 form.add(treePanel);
} else {

 treePanel.setOutputMarkupId(true);
 form.add(treePanel);
} else {