what version of wicket is that code?
I guess 1.2? then you should use onAttach()
because onBeforeRender you can't change anything anymore because the page is
already rendering.
johan
On Nov 9, 2007 4:00 PM, William Hoover <[EMAIL PROTECTED]> wrote:
> I'm curious if my approach is incorrect when implementing
> AbstractBehaviour and changing the model before it renders? Seems odd that
> I'm getting an exception stating that I cannot modify a component hierarchy
> during render phase when overriding the "beforeRender" method... am I
> missing something here?
>
> public final void beforeRender(Component component) {
> component.setModel(new StringResourceModel(
> "some.resource",
> refComponent, null));
> }
>
> org.apache.wicket.WicketRuntimeException: Cannot modify component
> hierarchy during render phase
> at org.apache.wicket.Component.checkHierarchyChange(Component.java
> :2931)
> at org.apache.wicket.Component.addStateChange(Component.java:2863)
> at org.apache.wicket.Component.setModel(Component.java:2436)
>
>
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