7 Replies Latest reply on Feb 19, 2008 8:03 AM by emsa

'selected' item of h:selectOneMenu is to updated

emsa Feb 12, 2008 9:27 AM

Hi,

I have a couple of 'chained' <h:selectOneMenu> in an <a4j:region> something like:

<h:selectOneMenu value="#{node.selected}">
 <a4j:support reRender="#{rerender}" event="onchange" action="#{type.select}" status="status"/>
 <f:selectItems value="#{node.selectables}" />
</h:selectOneMenu>

and it is all workning very well.

Sometimes I need to force the value of the selected item from another control on the page. I have verified that the selected item is updated in the bean (#{type}) but the <h:selectOneMenu /> does not update the selected item when the #{rerender} region is updated.

Is there any way to force the <h:selectOneMenu /> to updated the selected value from the bean before it is rendered?

/Magnus

1. Re: 'selected' item of h:selectOneMenu is to updated

ilya_shaikovsky Feb 12, 2008 10:38 AM (in response to emsa)

seems the same as described http://labs.jboss.com/wiki/RichFacesTwoInputText
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2. Re: 'selected' item of h:selectOneMenu is to updated

emsa Feb 12, 2008 12:36 PM (in response to emsa)

Yes I guess that is related, but if I display the selected value with <h:outputText value="#{node.selected}" /> or similar I always get the correct value.

I have however solved the problem at hand, I bit ugly - but working. I walk through the Component Tree finding the affected UISelectOne and doing a setValue() with the correct value.
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3. Re: 'selected' item of h:selectOneMenu is to updated

ilya_shaikovsky Feb 13, 2008 4:11 AM (in response to emsa)

Of course, outputText doen't updates its value during request.. So this is not a problem..

To your case more prefered solution was surrounding with region component inputs and selects which should be processed alone (with further inputs and selects updates.)
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4. Re: 'selected' item of h:selectOneMenu is to updated

emsa Feb 18, 2008 12:45 PM (in response to emsa)

Yes, but the strange thing is that it works with inputTexts as well - it is only the select-menus that contains the stale values.
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5. Re: 'selected' item of h:selectOneMenu is to updated

emsa Feb 18, 2008 1:01 PM (in response to emsa)

One more thing, it is even so that if the selectItems change it is reflected in the options but the selected value is not.

Any clues?
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6. Re: 'selected' item of h:selectOneMenu is to updated

ilya_shaikovsky Feb 19, 2008 5:20 AM (in response to emsa)

could you please share your sample with me? (war with sources and libs preferred.)
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7. Re: 'selected' item of h:selectOneMenu is to updated

emsa Feb 19, 2008 8:03 AM (in response to emsa)

Will do - I have a deadline this week so it will have to wait until next week. But as far as I can understand from behavior and code is that once a value is submitted to the control no value will be read from from the backing bean. It does not mater if I surround different controls in a4j:regions or not. My solution, for now, is to navigate to make sure a fresh tree is created.
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