jsf - hideNoSelectionOption in selectOneMenu is not working as expected

Question

I have the following selectOneMenu and within of my component I want to have an item which shouldn't be shown, for e.g. in cases where the value from #{Mybean.value} match a value from #{Mybean.ListValues} I don't want to have an empty option in my combo box .

  <p:selectOneMenu value="#{Mybean.value}"  hideNoSelectionOption="true"     
   required="true" requiredMessage="Required data">

      <f:selectItem itemLabel="" itemValue="#{null}" noSelectionOption="true" />
      <f:selectItems value="#{Mybean.ListValues}" var="option"  itemLabel="#{option.optionName}"   
      itemValue="#{option.optionId}"/>
 </p:selectOneMenu>

I searched, but I didn't find anything useful, just one link in primefaces forum where describes exactly this problem.

My primefaces version is 3.5

Answer 1

Edit: it is supported from version 9 and on, see the other answer.

That attribute doesn't exist in the official api or in the doc. Where did you get it from?

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What you're actually looking for is the itemDisabled attribute on the f:selectItems component. It's this attribute that disables a selectItem from being selected. Historically, primefaces has had problems with that attribute.

Ideally, you should have

   <p:selectOneMenu value="#{Mybean.value}" required="true" requiredMessage="Required data">
       <f:selectItem itemLabel="" itemValue="#{null}" noSelectionOption="true" />
       <f:selectItems itemDisabled="#{Mybean.value=='aValue'}" value="#{Mybean.ListValues}" var="option" itemLabel="#{option.optionName}"      itemValue="#{option.optionId}"/>
  </p:selectOneMenu>