This approach used to work for me under 1.1, but no longer in 1.2.
I have a BookmarkablePageLink that I want to disable when its target is
a subclass of a given page.
I used to do something like this:
protected void onRender( final MarkupStream markupStream )
{
setEnabled( ! m_parentClass.isAssignableFrom(
getPage().getClass() ) );
super.onRender( markupStream );
}
But this now throws an exception:
wicket.WicketRuntimeException: Cannot modify component hierarchy during
render phase
at wicket.Page.checkHierarchyChange(Page.java:1001)
at wicket.Page.componentStateChanging(Page.java:934)
at wicket.Component.addStateChange(Component.java:2118)
at wicket.Component.setEnabled(Component.java:1732)
...
How should I go about creating the same effect? Where should I set the link's
enabled value based on the above criterion?
Thanks!
Dave
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