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c:if test is not being invoked in facelet + JSF2

Answer 1

A:

Well,

I used rendered instead, like this:

<h:panelGroup rendered="#{title!=null}">

                <h1>#{title}</h1>

        </h:panelGroup>

Odelya 2010-07-26 14:43:50

Answer 2

A:

The XML namespace is invalid. It should be

xmlns:c="http://java.sun.com/jsp/jstl/core"

Yes, astonishingly with the jsp part in the URI! If you have checked the generated HTML output in the webbrowser, you should have noticed as well that the <c:if> is left unparsed in the HTML output.

That said, you should prefer JSF components over JSTL tags, unless technically impossible (i.e. when you actually want to control the building of the view, not rendering of the view). The h:panelGroup is a good candidate, the f:verbatim is however a nicer choice since it has less overhead.

<f:verbatim rendered="#{!empty title}">
    <h1>#{title}</h1>
</f:verbatim>

BalusC 2010-07-26 14:47:33

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c:if test is not being invoked in facelet + JSF2

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