Is that element placed / added to a form ?
On Sat, Jun 26, 2010 at 5:32 AM, David Chang <david_q_zh...@yahoo.com>wrote:
> Hi, I am unable to addres this need and have to ask the group.
>
> I am using the ajax approach to validate each field on a form. See the
> following:
>
> <div wicket:id="fullNameBorder">
> <input type="text" wicket:id="fullName" />
> </div>
>
> If the above field gets focus and loses the focus without any value in it,
> there will be a red box around the input field. If it gets a value and loses
> its mouse focus, the red box disappears. All this happens without the user
> submitting the form.
>
> The backend code is similar to the following:
>
> ...
> inputComponent.add(new AjaxFormComponentUpdatingBehavior("onblur") {
>
> @Override
> protected void onUpdate(AjaxRequestTarget target) {
> if (target != null) {
> //add border and feedback panel here
> }
> }
>
> @Override
> protected void onError(AjaxRequestTarget target, RuntimeException e) {
> if (target != null) {
> //add border and feedback panel here
> }
> });
> ....
>
> This approach works well for TextFields.
>
> Now I have a list of check boxes (implemented via CheckBoxMultipleChoice).
> At least one of them must be checked. The above Ajax approach is NOT
> working.
>
> Can anybody there help me out on this?
>
> All the best.
>
>
>
>
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