primefaces下拉列表不适用于ajax JSF2

Question

I have a big problem with selectOnMenu in JSF2, i tried to use this component with but not working , i tested also the primefaces example http://www.primefaces.org/showcase/ui/ajax/dropdown.xhtml but without any new result .

i think that i miss some config or filter about ajax in my project or my page.

Here is dropdown code :

<p:selectOneMenu style="width:300px;"  value="#{parameterBean.name}">
            <f:selectItem itemLabel="Select parameter Type" itemValue="" noSelectionOption="true" />
            <f:selectItems value="#{parameterTypeBean.listParameterTypes}"  var="ptype"     itemValue="#{ptype.id}" itemLabel="#{ptype.name}" />
            <p:ajax listener="#{parameterBean.serviceChange}" event="change" update="pTable" process="@form"/>
        </p:selectOneMenu>

This is my simple actionBean :

    public void serviceChange() {
    System.out.println("change");
}

Can you help me to resolve this problem ?

Answer 1

删除process =“ @ form”，这样

<p:ajax listener="#{parameterBean.serviceChange}" event="change" update="pTable"/>