table = new AjaxFallbackDefaultDataTable<BuildableComponentDto, String>("components", getColumns(), getModel(),
		100) {
	@Override
	protected Item<BuildableComponentDto> newRowItem(String id, int index, IModel<BuildableComponentDto> model) {
		Item<BuildableComponentDto> components = new Item<BuildableComponentDto>(id, index, model) {
			@Override
			public void onEvent(IEvent<?> event) {
				super.onEvent(event);
				if (event.getPayload() instanceof ComponentChangedEvent) {
					ComponentChangedEvent payload = (ComponentChangedEvent) event.getPayload();
					BuildableComponentDto buildableComponentDto = payload.getBuildableComponentDto();
					if (buildableComponentDto.getId().equals(getModelObject().getId())) {
						setModelObject(payload.getBuildableComponentDto());
						payload.getTarget().add(this);
						event.stop();
					}
				} else if (event.getPayload() instanceof ComponentDeletedEvent) {
					ComponentDeletedEvent payload = (ComponentDeletedEvent) event.getPayload();
					BuildableComponentDto buildableComponentDto = payload.getBuildableComponentDto();
					AjaxRequestTarget target = payload.getTarget();
					if (buildableComponentDto.getId().equals(getModelObject().getId())) {
						this.setVisible(false);
						target.add(this);
						event.stop();
					}
				}
			}
		};
		components.setMarkupId(ROW_ID_PREFIX + model.getObject().getId());
		components.setOutputMarkupId(true);
		return components;
	}
};

public void addItem(AjaxRequestTarget target, BuildableComponentDto buildableComponentDto) {
	try {
		RefreshingView datagrid = (RefreshingView) ReflectUtils.getInstance().getFieldValue(
				table, "datagrid");
		Method method = RefreshingView.class.getDeclaredMethod("newItemFactory");
		method.setAccessible(true);
		IItemFactory factory = (IItemFactory) method.invoke(datagrid);
		Item item = factory.newItem(buildableComponentDto.getId(), new Model(buildableComponentDto));
		datagrid.add(item);
		target.prependJavaScript(String.format(
				"var item=document.createElement('%s');item.id='%s';"
						+ "Wicket.$('%s').getElementsByTagName(\"tbody\")[0].appendChild(item);", "tr", item.getMarkupId(),
				table.getMarkupId()));
		target.add(item);
	} catch (Exception e) {
		throw new RuntimeException(e);
	}
}