Thanks for the reply.
Besed on your codes, I can get the error flag; but can not know if the error
is on this component because this tracker may contain errors for other
components. I am thinking that I can use inError(Field field) to find the
answer. But if I use beaneditform to generate the form, I will not define
each individual field in the page class (but just define a beaneditform). In
this case, I can not use inError(Field field) method. Is there a way to
create a Tapestry Field from Bean?
Thanks,
XW
joshcanfield wrote:
>
> Hi,
>
> I believe you can achieve what you want by grabbing the ValidationTracker
> from the Environment. The Form component pushes it to the environment
> during
> beginRender and pops it in cleanupRender, your component will beginRender
> after the form.
>
> you would do something like:
> @Inject
> Environment _environment;
> void beginRender() {
> ...
> ValidationTracker tracker = _environment.peek(ValidationTracker.class);
> tracker.getHasErrors();
> }
>
> I haven't run, or even compiled this code, and I'm still back in 5.0.6 so
> perhaps something has changed, but I'm fairly certain it should work.
>
> Good luck,
> Josh
>
> On Jan 30, 2008 9:11 AM, Xinhua <[EMAIL PROTECTED]> wrote:
>
>>
>> I create a custom component (AttrLable) which extends AbstractField. In
>> the
>> BeginRender(MarkupWriter writer), I will need to override the label tag
>> based on whether there is an error in the input field which is associated
>> to
>> this label.
>>
>> On the form submission, I will do the form validation and if errors are
>> found, I will highlight the label and input field in the form page. But
>> the
>> problem is how I can pass the error flag to the component class
>> (Attrlabel)
>> which will rend the component.
>>
>> Thanks in advance!
>>
>>
>> Xinhua
>> --
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>
>
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