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From laredotornado <laredotorn...@gmail.com>
Subject Re: How do I change the value of a selectOneMenu on the fly
Date Thu, 17 Dec 2009 14:29:58 GMT

Could you show the method of the Javascript submit() function that you are
talking about?  I'm having a hard time imagining how what you list is
different than submitting the form.  

Thanks, - Dave



Julián Osorio Amaya EuphoriaIT wrote:
> 
> laredotornado escribió:
>> Thanks, Julian.  I have a follow-up question regarding your solution. 
>> You
>> include an onchange Javascript handler where you submit the form, at
>> least,
>> I assume that's what submit() does.  How do I submit the form, keep it on
>> the same page, preserve the values that were already entered, and not
>> prompt
>> validation?  Is it as simple as "this.form.submit();"?
>>
>> Thanks, - Dave
>>
>>
>>
>> Julián Osorio Amaya EuphoriaIT wrote:
>>   
>>> laredotornado escribió:
>>>     
>>>> Hi,
>>>>
>>>> I'm using MyFaces 1.1.6 and Tomahawk 1.1.9.  I have this selectOneMenu
>>>> ...
>>>>
>>>> 			  	<h:selectOneMenu required="true"
>>>> validator="#{historicalTour.validateTime}" styleClass="hourMenu"
>>>> id="historicalTour1st_Preference_Hour"
>>>> value="#{historicalTour.prefs[0].time}">
>>>> 			    	<f:selectItems value="#{historicalTour.timePrefItems}"/>
>>>> 			  	</h:selectOneMenu>
>>>>
>>>> When another text field on the page changes value, I would like to
>>>> re-populate the select menu with new options.  I have discovered I just
>>>> can't simply do that with Javascript, because when I submit the form I
>>>> get a 
>>>>
>>>> "Value is not a valid option"
>>>>
>>>> error.  Any ideas how I can change my select menu options and keep JSF
>>>> happy?
>>>>
>>>> Thanks, - Dave
>>>>   
>>>>       
>>> You can use a Value Change Listener in your text field like this
>>> <h:inputText valueChangeListener="#{BackingBean.methodName}" 
>>> onchange="submit()" />
>>>
>>> in your backing bean
>>>
>>> public BackingBean implements ValueChangeListener {
>>>      public void processValueChange(ValueChangeEvent valueChangeEvent) {
>>>     }
>>>
>>>     public void methodName(ValueChangeEvent vce) {
>>>        //change your select menu options
>>>     }
>>> }
>>>
>>> -- 
>>> <?xml version = '1.0' encoding = 'UTF-8'?>
>>> <firma>
>>> 	<nombre>Julian Osorio Amaya</nombre>
>>> </firma>
>>>
>>>
>>>
>>>     
>>
>>   
> the function of the javascript event "onchange" is invoke the method in 
> the valueChangeListener="#{BackingBean.yourMethod}"
> but it's different from the submit action on <h:commandButton 
> action="#{BackingBean.submitForm}" />
> 
> -- 
> <?xml version = '1.0' encoding = 'UTF-8'?>
> <firma>
> 	<nombre>Julian Osorio Amaya</nombre>
> </firma>
> 
> 
> 

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