The valueChangeListener can not fire from your code.
>> <tc:selectOneChoice
>> valueChangeListener="#{mybean.processValueChange}"
>> onchange="submit();" value="">
>> <f:selectItems value="#{mybean.featureValue_1}" />
>> </tc:selectOneChoice>
Look, you have hard-coded the value! So how can the value ever change?
And your original example code didn't even have a value attribute defined!
Notice it's called *value*ChangeListener, not selectionChangeListener. :)
Make the selectOneChoice's "value" attribute a value-binding expression
that references a String property on some backing-bean. When you select
something in the combo box, it will call the setter for that property,
using the itemValue from the selectItem. It should also fire a
valueChange event.
Hope this helps.
Regards,
Jeff Bischoff
Kenneth L Kurz & Associates, Inc.
Gerald Müllan wrote:
Hi,
have you put any message/messages-tag into the page, to see if there
comes some message from the jsf environment?
Also set the "value" attribute of selectOneChoice to a value in the
managed bean., like "Nabe_Name" or "Kette_Name". Maybe thats the
problem.
cheers,
Gerald
On 10/6/06, Peter Rabing <[EMAIL PROTECTED]> wrote:
Hi,
"submit() " or "submit();" makes no difference, the form is submitted
when a value in the combo is
selected, sorry that I wasn't clear on this in my first post.
My Bean does implement
public void processValueChange(javax.faces.event.ValueChangeEvent
valueChangeEvent) {
log.fine("*************\n**********\nreceived value change event
"+valueChangeEvent);
throw new IllegalStateException("************ This can't be true
**********");
}
And the form is rendered in the HTML, too.
The bean is called to retrieve the values of the combo:
public SelectItem[] getFeatureValue_1() {
SelectItem [] items = new SelectItem [2];
items[0] = new SelectItem( "Nabe_Name", "Nabenschaltung",
"a desc");
items[1] = new SelectItem( "Kette_Name", "Kettenschaltung",
"a desc");
return items;
}
The whole page is fairly stripped down now, but it still doesn' work:
<f:view >
<tc:page label="Page Title" id="page" >
<tc:panel>
<f:facet name="layout">
<tc:gridLayout border="0" rows="20px;fixed;*" />
</f:facet>
<tc:out escape="false" value="Statisch" />
<tc:selectOneChoice
valueChangeListener="#{mybean.processValueChange}"
onchange="submit();" value="">
<f:selectItems value="#{mybean.featureValue_1}" />
</tc:selectOneChoice>
</tc:panel>
</tc:page>
</f:view>
Any other ideas ?
Thank you very much,
Peter
>
> Does your bean implement the method public void
> processValueChange(javax.faces.event.ValueChangeEvent event) {...} ?
>
> and
>
> Is the form rendered in the HTML output ? May be missing <h:form> ?
>
> regards
>
> Marco
>
> --
> http://www.lenses-price-comparison.com
> http://www.perfume-price-comparison.com
>
>
>
> Peter Rabing schrieb:
> > Hi,
> >
> > I am trying to install a changelistener on a combo box. But
unfortunately, nothing happens, no listener is called.
> > The box is rendered correctly, and has the correct values on click
it is submitted, but the listener is never called and no exception
occurs:
> >
> > <tc:selectOneChoice
valueChangeListener="#{mybean.processValueChange}" onchange="submit() ">
> > <f:selectItems value="#{mybean.featureValue_1}" />
> > </tc:selectOneChoice>
> >
> > My Bean implements the ValueChangeListener interface.
> >
> > I guess I am missing something essential here ..
> >
> > Thanks for your help.
> >
> > Peter
> >
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