you most likely did not give the formcomponent a model.
paste the relevant code
-igor
On 4/28/07, wicket0123 <[EMAIL PROTECTED]> wrote:
when i use getformcomponent.getmodleobject inside the onupdate, it throws
nullpointer exeption. see code below,
((SignUpFormModel) getFormComponent().getModelObject()).getUserName()
If I use this, i have no problem:
((SignUpFormModel)
getComponent().getParent().getModelObject()).getUserName();
Not sure if this is a bug on wicket or my code...
igor.vaynberg wrote:
>
> if you use wicket validators and the component is invalid the onerror()
> will
> be called instead of onupdate()
>
> the value is available via getformcomponent().getmodelobject() inside
> onupdate()
>
> -igor
>
>
> On 4/27/07, wicket0123 <[EMAIL PROTECTED]> wrote:
>>
>>
>> I want to use ajax to check if a field value is valid w/o submitting
the
>> entire form. I add AjaxFormComponentUpdatingBehavior to my ajax object
>> (link/button/etc). But, I don't know how to retrieve the edit field's
>> value
>> inside the onUpdate method. See the code I have:
>>
>> fc = new RequiredTextField("userName");
>> fc.setLabel(new Model("User Name"));
>> add(fc);
>>
>> fc = new Button("checkId");
>> fc.add(new AjaxFormComponentUpdatingBehavior("onClick")
{
>> protected void onUpdate(AjaxRequestTarget
target)
>> {
>>
>> System.out.println("This gets called");
>>
>> // TODO: how to get the userName
field's
>> value?
>>
>>
>> }
>> });
>>
>> add(fc);
>> --
>> View this message in context:
>>
http://www.nabble.com/how-to-get-a-form%27s-field-when-i-click-on-an-ajax-object-tf3660473.html#a10228341
>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
>>
-------------------------------------------------------------------------
>> This SF.net email is sponsored by DB2 Express
>> Download DB2 Express C - the FREE version of DB2 express and take
>> control of your XML. No limits. Just data. Click to get it now.
>> http://sourceforge.net/powerbar/db2/
>> _______________________________________________
>> Wicket-user mailing list
>> Wicket-user@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/wicket-user
>>
>
>
-------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Wicket-user mailing list
> Wicket-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/wicket-user
>
>
--
View this message in context:
http://www.nabble.com/how-to-get-a-form%27s-field-when-i-click-on-an-ajax-object-tf3660473.html#a10237360
Sent from the Wicket - User mailing list archive at Nabble.com.
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Wicket-user mailing list
Wicket-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wicket-user
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Wicket-user mailing list
Wicket-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/wicket-user
