Re: Elegant way to modify parent component tag if child has errors

2013-10-26 Thread Ernesto Reinaldo Barreiro
I would do this with JavaScritpt

div class=PlaceHolder
input type=text wicket:id=userName /
/div


with a behaviors attached to to userName that whenever the field has
errors it finds a parent with class PlaceHolder and adds Error
class. And remove it if not. No need for a component for
userNamePlaceholder or find a component with a given name (e.g. if you
rename userName you will have to remember changing your behavior).


Re: Elegant way to modify parent component tag if child has errors

2013-10-26 Thread meduolis
When/how should I trigger JS to update attribute? I have never used pure JS
in my Wicket applications. I always try to use Wicket components/behaviors.

Also, to avoid problem you mentioned about path to child I can pass it as a
parameter which would be static field for both child component and behavior
parameter:




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Re: Elegant way to modify parent component tag if child has errors

2013-10-26 Thread Ernesto Reinaldo Barreiro
There is a renderHead on behavior: you can use it to contribute JavaScript.
Sooner than later, if you want to have complex user interaction at client
side, you will end up using extra JavaScript features. There are many
examples out there of JavaScript integration with Wicket


On Sat, Oct 26, 2013 at 12:14 PM, meduolis meduol...@gmail.com wrote:

 When/how should I trigger JS to update attribute? I have never used pure JS
 in my Wicket applications. I always try to use Wicket components/behaviors.

 Also, to avoid problem you mentioned about path to child I can pass it as a
 parameter which would be static field for both child component and behavior
 parameter:




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 View this message in context:
 http://apache-wicket.1842946.n4.nabble.com/Elegant-way-to-modify-parent-component-tag-if-child-has-errors-tp4661983p4661985.html
 Sent from the Users forum mailing list archive at Nabble.com.

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Regards - Ernesto Reinaldo Barreiro