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Posted to dev@tapestry.apache.org by ta...@jakarta.apache.org on 2004/06/21 14:01:35 UTC

[Jakarta Tapestry Wiki] New: FrequentlyAskedQuestions/OptionalParameters

   Date: 2004-06-21T05:01:35
   Editor: 165.228.129.12 <>
   Wiki: Jakarta Tapestry Wiki
   Page: FrequentlyAskedQuestions/OptionalParameters
   URL: http://wiki.apache.org/jakarta-tapestry/FrequentlyAskedQuestions/OptionalParameters

   no comment

New Page:

Question:

I have a button that I'm creating using the @Any component.  
I'd like to be able to set the disabled attribute conditionally.  Is there an easy to do this with Tapestry?

Answer:

<button jwcid="@Any" disabled="ognl:disabled ? 'disabled' : null"/>

Informal parameters with null values do not get rendered as informal attributes.

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