hm, not really sure. maybe you can try rolling your own behavior and
customize it to your exact needs.
-igor
On Thu, Jul 23, 2009 at 8:09 AM, CrocodileShoes<mark.do...@logica.com> wrote:
>
> Well I was adding this behaviour in the constructor of the Panel, i.e.
>
> this.add(new AjaxSelfUpdatingBehaviour(...));
>
> which I assumed resulted in the same effect.
>
> I have just changed it to the following (see below) and now get a null
> pointer when the behaviour tries to update the panel after I switch to
> another one, i.e. when the panel is no longer visible.
>
> Note, I am storing the panels in a List (tabsList) to prevent them being
> recreated every time a user switches tabs. I did this to preserve the
> state. Perhaps this is causing some problems.
>
> So to recap, this now throws a null pointer (at
> org.apache.wicket.request.target.component.listener.BehaviorRequestTarget.processEvents(BehaviorRequestTarget.java:96)
> presumably because the panel isn't in the markup to update.
>
> tabs.add(new AbstractTab(new Model("Administration")) {
> public Panel getPanel(String panelId) {
> if (tabsList.containsKey("Administration")) {
> return tabsList.get("Administration");
> }
> else {
> AdminPanel adminPanel = new AdminPanel(panelId);
> adminPanel.setOutputMarkupPlaceholderTag(true);
> adminPanel.add(new
> AjaxSelfUpdatingTimerBehavior(Duration.seconds(5)));
> tabsList.put("Administration", adminPanel);
> return adminPanel;
> }
> }
> });
>
>
>
> igor.vaynberg wrote:
>>
>> cant you add the behavior directly to the panel?
>>
>> -igor
>>
>
> --
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> Sent from the Wicket - User mailing list archive at Nabble.com.
>
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