Gottcha... works (see below), Thanks Johan!
new AbstractBehavior(){
@Override
public final void beforeRender(Component component) {
component.getModel().setObject(new
StringResourceModel(getResourceKey(), refComponent, null).getString());
}
}
-----Original Message-----
From: Johan Compagner [mailto:[EMAIL PROTECTED]
Sent: Friday, November 09, 2007 11:39 AM
To: [email protected]
Subject: Re: beforeRender() - Cannot modify component hierarchy during
render phase?
changet the model value itself. instead of setting a new model
On Nov 9, 2007 5:30 PM, William Hoover <[EMAIL PROTECTED]> wrote:
> Is there any way that to dynamically update a StringResourceModel?
>
> -----Original Message-----
> From: Matej Knopp [mailto:[EMAIL PROTECTED]
> Sent: Friday, November 09, 2007 11:11 AM
> To: [email protected]
> Subject: Re: beforeRender() - Cannot modify component hierarchy during
> render phase?
>
>
> I am affraid you can't modify a component from a behavior before
> render. Unline onBeforeRender in component, the behavior's
> beforeRender is called right before component rendering, i.e. during
> the rendering process. In the next verion we will probably rename the
> before/afterRender methods in behavior and add onBefore/after render
> method consistent with component's onBeforeRender/onAfterRender.
>
> -Matej
>
> On Nov 9, 2007 5:06 PM, William Hoover <[EMAIL PROTECTED]> wrote:
> > Its 1.3.0-beta4
> >
> > Is it still an issue?
> >
> >
> > -----Original Message-----
> > From: Johan Compagner [mailto:[EMAIL PROTECTED]
> > Sent: Friday, November 09, 2007 10:15 AM
> > To: [email protected]
> > Subject: Re: beforeRender() - Cannot modify component hierarchy during
> > render phase?
> >
> >
> > 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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> > >
> >
> >
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