<t:ajaxformloop source="comparisons" value="currentcomparison"
encoder="comparisonsencoder">
<t:parameter name="addRow">
<t:addrowlink>Add a Comparison</t:addrowlink>
</t:parameter>
<t:submitnotifier>
<t:removerowlink>Remove</t:removerowlink>
</t:submitnotifier>
</t:ajaxformloop>
Shouldn't there be a TextField or something in there?
The rather odd error is that Tapestry has to "hunt around" to find a
conforming location to add a hidden field; typically inside a <p> or
before an <input> tag. Your AjaxFormLoop has, effectively, no body and
so no content gets written, and Tapestry can't figure out where to add
the hidden field.
On Wed, Apr 22, 2009 at 11:52 AM, zack1403 <zack.mann...@gmail.com> wrote:
>
> When I upgraded to 5.1.0.2 my AjaxFormLoops throw exceptions upon trying to
> add a row. Remove row links still work and the transaction is getting
> committed even when there is an exception. Ie, if I refresh the page after
> blackbird shows the exception I can see my added row. I have trimmed down
> my code to the simplest possible AjaxFormLoop example and an exception is
> still being thrown. Should I be returning something other than an Object
> from my onAddRow method?
>
> Exception:
>
> [ERROR] 35:15
> (DefaultRequestExceptionHandler.java:handleRequestException:62) Processing
> of request failed with uncaught exception: The rendered content did not
> include any elements that allow for the positioning of the hidden form
> field's element.
> java.lang.IllegalStateException: The rendered content did not include any
> elements that allow for the positioning of the hidden form field's element.
> at
> org.apache.tapestry5.corelib.internal.HiddenFieldPositioner.getElement(HiddenFieldPositioner.java:74)
> at
> org.apache.tapestry5.corelib.components.FormInjector$1.renderMarkup(FormInjector.java:234)
> at
> org.apache.tapestry5.internal.services.PageRenderQueueImpl$Bridge.renderMarkup(PageRenderQueueImpl.java:62)
> at
> org.apache.tapestry5.corelib.components.AjaxFormLoop$10.renderMarkup(AjaxFormLoop.java:415)
> at
> org.apache.tapestry5.internal.services.PageRenderQueueImpl$Bridge.renderMarkup(PageRenderQueueImpl.java:62)
> at
> org.apache.tapestry5.internal.services.PageRenderQueueImpl.renderPartial(PageRenderQueueImpl.java:159)
>
> Page class snippet:
>
> @CommitAfter
> public Comparison onAddRow() {
> return new Comparison();
> }
>
> Template snippet:
> <t:ajaxformloop source="comparisons" value="currentcomparison"
> encoder="comparisonsencoder">
> <t:parameter name="addRow">
> <t:addrowlink>Add a Comparison</t:addrowlink>
> </t:parameter>
> <t:submitnotifier>
> <t:removerowlink>Remove</t:removerowlink>
> </t:submitnotifier>
> </t:ajaxformloop>
>
> Any help would be much appreciated.
> --
> View this message in context:
> http://www.nabble.com/AjaxFormLoop-Exception-on-5.1.0.2-upgrade-tp23175801p23175801.html
> Sent from the Tapestry - User mailing list archive at Nabble.com.
>
>
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>
--
Howard M. Lewis Ship
Creator of Apache Tapestry
Director of Open Source Technology at Formos
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