How to use

replaceWith

method

in

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

  @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 BaseModal<T> setInternalContent(final Panel component) {
  if (!component.getId().equals(getContentId())) {
    throw new WicketRuntimeException("Modal content id is wrong. "
        + "Component ID: " + component.getId() + "; content ID: " + getContentId());
  }
  content.replaceWith(component);
  content = component;
  return this;
}

contentPanel.replaceWith(flowPanel);
contentPanel= flowPanel;

public ProjectKnowledgeBasePanel(String aId, final IModel<Project> aProject)
{
  super(aId, aProject);
  setOutputMarkupId(true);
  projectModel = aProject;
  detailsPanel = new EmptyPanel(DETAILS_PANEL_MARKUP_ID);
  add(detailsPanel);
  selectedKnowledgeBaseModel = Model.of();
  KnowledgeBaseListPanel listPanel = new KnowledgeBaseListPanel("list", projectModel,
    selectedKnowledgeBaseModel);
  listPanel.setChangeAction(t -> {
    addOrReplace(detailsPanel);
    detailsPanel.replaceWith(
      new KnowledgeBaseDetailsPanel(DETAILS_PANEL_MARKUP_ID, selectedKnowledgeBaseModel));
    t.add(this);
  });
  add(listPanel);
}

public ProjectKnowledgeBasePanel(String aId, final IModel<Project> aProject)
{
  super(aId, aProject);
  setOutputMarkupId(true);
  projectModel = aProject;
  detailsPanel = new EmptyPanel(DETAILS_PANEL_MARKUP_ID);
  add(detailsPanel);
  selectedKnowledgeBaseModel = Model.of();
  KnowledgeBaseListPanel listPanel = new KnowledgeBaseListPanel("list", projectModel,
    selectedKnowledgeBaseModel);
  listPanel.setChangeAction(t -> {
    addOrReplace(detailsPanel);
    detailsPanel.replaceWith(
      new KnowledgeBaseDetailsPanel(DETAILS_PANEL_MARKUP_ID, selectedKnowledgeBaseModel));
    t.add(this);
  });
  add(listPanel);
}