final IModel<BrixNode> nodeModel) {
super(id, fragmentId, markupContainer, nodeModel);
final Form<Void> form = new Form<Void>("form");
add(form);
form.add(new ContainerFeedbackPanel("feedback", form));
final FormComponent<String> tileId;
form.add(tileId = new TextField<String>("tileId", new PropertyModel<String>(this, "newTileId")));
tileId.setRequired(true).add(new NewTileIdValidator()).add(NodeNameValidator.getInstance()).setOutputMarkupId(true);