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Posted to users@wicket.apache.org by bebetu <an...@yahoo.com> on 2007/09/22 22:53:34 UTC
Formless DropDownChoice selected value is null
Hi,
I have a DropDownChoice in a WizardStep component (Wicket 1.3 beta 3) and I
want to read the selected value then update a text label based on selection
as well as disable the "Next" button if the user hasn't made a selection.
First of all I cannot get the selected value when I run the code below, the
selectedChoice variable is always null.
Secondly, how to ajaxify the "Next" wizard button based on the selection?
What am I doing wrong?
final ValueMap choiceMap = new ValueMap();
final PropertyModel ddcModel = new PropertyModel(choiceMap,
"selectedOption");
final DropDownChoice ddChoice = new DropDownChoice("choiceId", ddcModel,
someOptionList);
ddChoice.add(new AjaxEventBehavior("onchange") {
@Override
protected void onEvent(AjaxRequestTarget target) {
Object selectedChoice =
choiceMap.get("selectedOption");
}
});
Thanks!
florin
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Re: Formless DropDownChoice selected value is null
Posted by Johan Compagner <jc...@gmail.com>.
that still doesnt matter, what you use now is just the on change
event, no data will be pushed,for that you need to use the
formcomponentupdatebehavior
On 9/23/07, bebetu <an...@yahoo.com> wrote:
>
> I'm not using a form, it's a simple dropdownChoice in a wizard step.
>
>
> swaroop belur wrote:
> >
> > You should use ajaxformcomponentupdatingbehavior instead of
> > AjaxEventBehavior . I think AjaxEventBehavior just triggers the server
> > side call and does not update model
> >
> > -swaroop
> >
> >
> > On 9/23/07, bebetu <an...@yahoo.com> wrote:
> >>
> >>
> >> Hi,
> >> I have a DropDownChoice in a WizardStep component (Wicket 1.3 beta 3) and
> >> I
> >> want to read the selected value then update a text label based on
> >> selection
> >> as well as disable the "Next" button if the user hasn't made a selection.
> >> First of all I cannot get the selected value when I run the code below,
> >> the
> >> selectedChoice variable is always null.
> >> Secondly, how to ajaxify the "Next" wizard button based on the selection?
> >> What am I doing wrong?
> >>
> >> final ValueMap choiceMap = new ValueMap();
> >> final PropertyModel ddcModel = new PropertyModel(choiceMap,
> >> "selectedOption");
> >> final DropDownChoice ddChoice = new DropDownChoice("choiceId", ddcModel,
> >> someOptionList);
> >> ddChoice.add(new AjaxEventBehavior("onchange") {
> >> @Override
> >> protected void onEvent(AjaxRequestTarget target) {
> >> Object selectedChoice =
> >> choiceMap.get("selectedOption");
> >>
> >> }
> >> });
> >>
> >> Thanks!
> >> florin
> >>
> >>
> >>
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Formless-DropDownChoice-selected-value-is-null-tf4502016.html#a12848011
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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Re: Formless DropDownChoice selected value is null
Posted by bebetu <an...@yahoo.com>.
I'm not using a form, it's a simple dropdownChoice in a wizard step.
swaroop belur wrote:
>
> You should use ajaxformcomponentupdatingbehavior instead of
> AjaxEventBehavior . I think AjaxEventBehavior just triggers the server
> side call and does not update model
>
> -swaroop
>
>
> On 9/23/07, bebetu <an...@yahoo.com> wrote:
>>
>>
>> Hi,
>> I have a DropDownChoice in a WizardStep component (Wicket 1.3 beta 3) and
>> I
>> want to read the selected value then update a text label based on
>> selection
>> as well as disable the "Next" button if the user hasn't made a selection.
>> First of all I cannot get the selected value when I run the code below,
>> the
>> selectedChoice variable is always null.
>> Secondly, how to ajaxify the "Next" wizard button based on the selection?
>> What am I doing wrong?
>>
>> final ValueMap choiceMap = new ValueMap();
>> final PropertyModel ddcModel = new PropertyModel(choiceMap,
>> "selectedOption");
>> final DropDownChoice ddChoice = new DropDownChoice("choiceId", ddcModel,
>> someOptionList);
>> ddChoice.add(new AjaxEventBehavior("onchange") {
>> @Override
>> protected void onEvent(AjaxRequestTarget target) {
>> Object selectedChoice =
>> choiceMap.get("selectedOption");
>>
>> }
>> });
>>
>> Thanks!
>> florin
>>
>>
>>
>
>
--
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Re: Formless DropDownChoice selected value is null
Posted by Swaroop Belur <sw...@gmail.com>.
You should use ajaxformcomponentupdatingbehavior instead of
AjaxEventBehavior . I think AjaxEventBehavior just triggers the server
side call and does not update model
-swaroop
On 9/23/07, bebetu <an...@yahoo.com> wrote:
>
>
> Hi,
> I have a DropDownChoice in a WizardStep component (Wicket 1.3 beta 3) and
> I
> want to read the selected value then update a text label based on
> selection
> as well as disable the "Next" button if the user hasn't made a selection.
> First of all I cannot get the selected value when I run the code below,
> the
> selectedChoice variable is always null.
> Secondly, how to ajaxify the "Next" wizard button based on the selection?
> What am I doing wrong?
>
> final ValueMap choiceMap = new ValueMap();
> final PropertyModel ddcModel = new PropertyModel(choiceMap,
> "selectedOption");
> final DropDownChoice ddChoice = new DropDownChoice("choiceId", ddcModel,
> someOptionList);
> ddChoice.add(new AjaxEventBehavior("onchange") {
> @Override
> protected void onEvent(AjaxRequestTarget target) {
> Object selectedChoice =
> choiceMap.get("selectedOption");
>
> }
> });
>
> Thanks!
> florin
>
>
>