<a4j:commandButton id="bob"
action="#{MyBacking.doAction}"
image="/img/btn.png"
reRender="stuff"
oncomplete="#{not empty MyBacking.myCondition ? #{rich:component('myModelPanel')}.show()" : <do nothing>}"
ajaxSingle="true">
</a4j:commandButton>
那明显无效EL。以这种方式有条件地显示myModelPanel的最简洁的方法是什么?
由于IA