[prev in list] [next in list] [prev in thread] [next in thread] 

List:       tapestry-user
Subject:    Re: Tapestry 5 - Custom Component Validation
From:       Michael Courcy <michael.courcy () gmail ! com>
Date:       2008-01-31 21:58:11
Message-ID: 47A24473.4090806 () gmail ! com
[Download RAW message or body]


I'm really not sure that I grasp your need but

given that you declare the component in the template

@Component(id="myAttLabel")
private AttLabel myAttLabel;

public void  onValidate(){
  if(...whatever that could be an error...){
     myAttLabel.setErrorFlag(true);
  }
}

should do the job

But I think the answer of Josh Canfield is better
http://www.nabble.com/Tapestry-5---Custom-Component-Validation-tt15186101.html#a15186101
Because you can track the error within the component


Xinhua a écrit :
> This is what I am trying to do. But I could not pass the error flag from page
> to component(AttLabel). I do not want to use @Persist to do this, but like
> to add it to something like request object. So what annotation can I use? 
> Can you show me the way (some codes) to do this? 
>
> Xinhua
>
>
> Michael Courcy wrote:
>   
>> I you have control on the validation why not putting a flag in your 
>> component when a validation error happen.
>>
>> Your render process would depend of this flag.
>>
>> does it help ?
>>
>> Xinhua a écrit :
>>     
>>> 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 
>>>   
>>>       
>> -- 
>> Michael Courcy
>> http://courcy.blogspot.com
>> http://courcy-en.blogspot.com
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
>> For additional commands, e-mail: users-help@tapestry.apache.org
>>
>>
>>
>>     
>
>   


-- 
Michael Courcy
http://courcy.blogspot.com
http://courcy-en.blogspot.com



[prev in list] [next in list] [prev in thread] [next in thread]