How to execute managed bean method on selectOneMenu change?

Question

I have the following Managed Bean:

import javax.faces.bean.ManagedBean;

@ManagedBean
public class MyBean {

    public void mostrarCentroSeleccionado() {
        System.out.println("Value changed");
    }

}

And inside my .xhtml file the following selectOneMenu:

<p:selectOneMenu value="#{MyBean.centros.idcentro}" >

    <p:ajax event="change" listener="#{MyBean.mostrarCentroSeleccionado}" />

    <f:selectItem itemLabel="Seleccione un centro" itemValue="" />
    <f:selectItems value="#{MyBean.centros}" />
</p:selectOneMenu>

When I run that code I get the following exception:

javax.el.MethodNotFoundException

Thanks in advance

If your listener doesn't take the event, you should use `listener="#{myBean.mostrarCentroSeleccionado()}"` — Holger, Jul 07 '16 at 10:30
The full code will make this question unreachable... in fact @Holger answer worked for me — juanmorschrott, Jul 07 '16 at 11:57

score 0 · Answer 1 · answered Jul 07 '16 at 13:34

0

If Holger's solutions works out, its fine.

BUT: It is horrible to start start a Java Class Name with lower case letter. You can start with a capital letter and JSF will manage it for you, so you can still use listener="#{myBean.mostrarCentroSeleccionado()}" If this does not meet your requirements you can use @ManagedBean(name = "myBean ") Instead of myBean you can choose what ever you want.

answered Jul 07 '16 at 13:34

phe

26
6

If you know a little about PrimeFaces, you will understand that the point here is in one of two options. 1- Something missing or wrong at a xhtml tag or attribute. 2- A problem with the method to execute Anything else is just to put you in context. It´s not relevant or important. – juanmorschrott Jul 07 '16 at 17:39

score 0 · Accepted Answer · answered Jul 11 '16 at 12:53

0

The problem was in the tag:

<p:ajax listener="#{MyBean.function()}"/>

The function must have "()" becouse I´m not taking the event.

answered Jul 11 '16 at 12:53

juanmorschrott

573
5
25

How to execute managed bean method on selectOneMenu change?

2 Answers2