if you set the panel to be invisible on first render,
you also have to call panel.setOutputMarkupPlaceholderTag(true) so that
a "hidden" placeholder is rendered, which gets replaced with the real panel
once you set it to visible and add it to the ajaxrequestarget.
Gerolf
On Fri, Mar 21, 2008 at 10:54 AM, Stephan Koch <[EMAIL PROTECTED]>
wrote:
> Hi all,
>
> I have a Page with a DropDown Component and a Panel. The Panel displays
> some stuff based on the model object of the DropDown.
> In the constructor of my page, I set panel.setVisible(false) to prevent
> the panel from being rendered while the model object of the DropDown is
> null because the user has not yet selected an option.
>
> Now I want the Panel to be rendered once a valid choice is selected by
> the user. I tried this:
>
> protected void onEvent(AjaxRequestTarget target) {
> log.debug("ddMonth onChange triggered.");
> if(month != null) {
> reportPanel.setVisible(true);
> reportPanel.updatePanel(getServiceManager(),
> getUser(), month);
> target.addComponent(reportPanel);
> }
> }
>
>
> The event is triggered, the panel is not rendered though. Is there a way
> to achieve this without reloading the entire page?
> If not, how would I trigger a page reload from the onEvent method?
>
> Thanks,
> Stephan
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
