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From "Chris Lewis (JIRA)" <...@tapestry.apache.org>
Subject [jira] Commented: (TAPESTRY-1709) Radio component throws an exception when used with RadioGroup and Label
Date Thu, 16 Aug 2007 12:59:30 GMT

    [ https://issues.apache.org/jira/browse/TAPESTRY-1709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12520230
] 

Chris Lewis commented on TAPESTRY-1709:
---------------------------------------

I can verify this behavior. My workaround is to simply use raw label tags.

> Radio component throws an exception when used with RadioGroup and Label
> -----------------------------------------------------------------------
>
>                 Key: TAPESTRY-1709
>                 URL: https://issues.apache.org/jira/browse/TAPESTRY-1709
>             Project: Tapestry
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.0.5
>            Reporter: Nick Westgate
>
> Example code that breaks:
>     <t:RadioGroup t:id="group1">
>         <t:Radio t:id="radio1" t:value="value1"/><t:Label for="radio1"/>
>     </t:RadioGroup>
> Exception is:
> No object of type org.apache.tapestry.RadioContainer is available from the Environment.
> The reason is that the Label validation rendering calls Radio.getElementName() after
the RadioGroup has been popped from the environment.
> A simple fix is to cache the element name:
>     private String _elementName;
> ...
>     public String getElementName()
>     {
>         return _elementName;
>     }
> ...
>     void beginRender(MarkupWriter writer)
>     {
>         ...
>         _elementName = _container.getElementName();
>         writer.element("input", "type", "radio", "id", _clientId, "name", _elementName,
"value", value);
>         ...
>     }
> Cheers,
> Nick.

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