How to call listener in a p:selectCheckboxMenu with item passed in inside listener as parameter

Asked May 06 '19 at 08:30

Active May 07 '19 at 08:01

Viewed 516 times

I am using the selectCheckboxMenu to enable multiple users be selected. What I am trying to achieve is that, every time the user does a selection, the event will call the listener and pass in the selection as a parameter. Something like this

<p:selectCheckboxMenu id="user" value="#{userBean.selectedUserList}" 
   multiple="true" filter="true" filterMatchMode="contains">
     <f:selectItems value="#{userBean.users}" var="selectedUser"
        itemValue="#{selectedUser}"/>
    <p:ajax event="change"
        listener="#{userBean.addThisUserIntoAnotherList(selectedUser)}"/>
</p:selectCheckboxMenu>

I have tried to add the var="selectedUser" in the selectCheckBoxMenu tag instead but both return null as the parameter.

edited May 07 '19 at 08:01

Jasper de Vries

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asked May 06 '19 at 08:30

Nik Mohamad Lokman

2

Possible duplicate of [Send additional parameter to Ajax event listener](https://stackoverflow.com/questions/39143601/send-additional-parameter-to-ajax-event-listener) – Jasper de Vries May 06 '19 at 08:41
1

Doesn't the ` – Selaron May 06 '19 at 08:44
Still returns null @JasperdeVries – Nik Mohamad Lokman May 07 '19 at 04:08
listeners work, but sending individual selection into the listener doesn't @Selaron – Nik Mohamad Lokman May 07 '19 at 04:08
Using the `valueChangeListener`, you get a `javax.faces.event.ValueChangeEvent` which holds `new` and `old` component `value`. This way you can determine which element was selected on the current event. – Selaron May 07 '19 at 06:34
1

The better duplicate would be https://stackoverflow.com/questions/11879138/when-to-use-valuechangelistener-or-fajax-listener – Jasper de Vries May 07 '19 at 08:00

How to call listener in a p:selectCheckboxMenu with item passed in inside listener as parameter

0 Answers0