Hi Haman, ListView items are recreated by default (see RepeatingView or
ListView#setReuseItems). So your code is adding an AttributeAppender to an
component that will be discarded in benefit of a new one for the next
render.
On Fri, Jan 28, 2011 at 10:28 AM, Haman Abel <fha...@online.de> wrote:
> Hello to all,
>
> i am trying to build a dynamic menu based on data from a database. So i
> thought i could build it like my code shows it. To highlight the selected
> menu i try to dynamically add an attribute to the li tag in the onClick
> method. I would also want to load and repaint other panels (for example
> loading sub menus ), when the user clicks a menu link. But it is not
> working. What am i doing wrong?
>
> <pre>
> ListView<Menu> lv = new ListView<Menu>("mainMenu", menuList) {
> @Override
> protected void populateItem(final ListItem<Menu> item) {
> Menu menuItem = (Menu) item.getModelObject();
> Link<Menu> link = new Link<Menu>("menuLink") {
> @Override
> public void onClick() {
> item.add(new AttributeAppender("id", new
> Model("current_menu"), ";"));
> System.out.println("item was clicked " +
> item.getPath());
> }
>
> };
> link.add(new Label("menuCaption",
> menuItem.getMenuNameDe()));
> item.add(link);
> }
> };
> add(lv);
> </pre>
>
> and this is my panel markup:
>
> <pre>
> <body>
> <wicket:panel>
> <ul>
> <li wicket:id="mainMenu">
> <a href="#" wicket:id="menuLink"><span wicket:id="menuCaption"></span></a>
> </li>
> </ul>
> </wicket:panel>
> </body>
> </pre>
> My goal:
>
> <pre>
> <body>
> <wicket:panel>
> <ul>
> <li wicket:id="mainMenu" id="current_menu">
> <a href="#" wicket:id="menuLink"><span wicket:id="menuCaption"></span></a>
> </li>
> </ul>
> </wicket:panel>
> </body>
> </pre>
>
> Thank you for any help!
>
>
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>
--
Pedro Henrique Oliveira dos Santos
