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Message-ID: <17486778.post@talk.nabble.com>
Date: Tue, 27 May 2008 02:42:02 -0700 (PDT)
From: Jan Ziegler <ziegler@top21.de>
To: users@myfaces.apache.org
Subject: Re: inputHidden is not rendered correctly on immediate action
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I forgot my environment:

MyFaces 1.23
Facelets 1.0.14
Richfaces 3.21=20
Tomcat 6.0.16



Jan Ziegler wrote:
>=20
> Hi,
>=20
> I have a problem with h:inputHidden. I want to use it for keeping a
> request scope bean=C2=B4s value from one request to another. The followin=
g code
> shows a simple example:
>=20
> <h:form>
>    =20
>     <!-- show the text value -->
>     <h:outputText value=3D"textValue: #{formBean.textValue}" />
> =09=09=09
>     <!-- keep the text value -->
>     <h:inputHidden id=3D"field_restore" value=3D"#{formBean.textValue}" /=
>
>=20
>     <!-- set the text value -->
>     <h:commandButton value=3D"set data reload" immediate=3D"true">
> =09<f:setPropertyActionListener target=3D"#{formBean.textValue}" value=3D=
"this
> is the text value" />
>     </h:commandButton>
>=20
>     <!-- simple reload -->
>     <h:commandButton value=3D"simple reload"/><br/>
> =09=09=09
> </h:form>
>=20
>=20
> So I got 2 commandButtons: One ("set data reload") for setting
> "formBean.textValue" with an f:setPropertyActionListener and one ("simple
> reload") for just reloading the page (to check if the value get restored)=
.
> I want "formBean.textValue" to be kept over the request. In every case a
> get back on the same page (no actions are invoked)=20
>=20
> For restoring the value, I use a h:inputHidden ("field_restore") which is
> bound the request scoped bean ("formBean.textValue").=20
>=20
> So the scenario is like this:
> 1) Press "set data reload"=20
> 2) check the output: the textValue is set and the h:outputText shows it
> 3) Press "simple reload"
> 4) check the output: the textValue is restored and the h:outputText shows
> it
>=20
> Everthing works as expected when I set immediate of ("set data
> reload")-commandButton to FALSE.=20
> The value ist set and the output shows it. On a "simple reload" the value
> is restored an the output shows it again. If I look at the generated html
> code the hidden input-field is rendered with the textValue like this:
>=20
> <input type=3D"hidden" value=3D"this is the text" name=3D"j_id110:field_r=
estore"
> id=3D"j_id110:field_restore"/>
>=20
> Now if I change the immediate-Flag to TRUE (which is necessary in my case
> to bypass some other validations) the behavior is like this:
> After pressing the "set data reload"-commandButton the value is set and
> the output shows it (like above). But now on the following "simple reload=
"
> the value gets lost!=20
>=20
> Therefor I checked the hidden-input field after pressing "set data reload=
"
> and found the reason for not restoring the value - the hidden-input is
> rendered like this:
>=20
> <input type=3D"hidden" value=3D"" name=3D"j_id110:field_restore"
> id=3D"j_id110:field_restore"/>
>=20
> As you can see the value-Attribut is empty and therefor, nothing will be
> restored in the next (simple) request. The strange thing is, that after
> pressing "set data reload" the textValue on the bean is set  and the
> h:output shows the correct value, but only the hidden-field
> value-Attribute misses it.
>=20
> I can use t:saveState which solves the problem but I think in this
> situation it should really work by using h:inputHidden.
>=20
> Why is it not working with immediate set to true? When I debug the
> lifecyle I can see that the f:setPropertyActionListener for setting
> formBean.textValue is fired (in APPLY_REQUEST_PHASE instead of
> INVOKE_APPLIATION which is ok for immediate actions) and therefor the bea=
n
> value is set correctly (which I can see on the output) but why is the
> value of the hidden field not rendered with this value? =20
>=20
> Thanx for any help / hints,
> jan ziegler
>=20
>=20
>=20

--=20
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