How to hide/show selectOneMenu in JSF? [duplicate] - jsf

Question

This question already has an answer here:
Ajax update/render does not work on a component which has rendered attribute
(1 answer)
Closed 7 years ago.
I have an inputText and a selectOneRadio component, when form load selectOneRadio should be hidden. When user select inputText, I want to show the selectOneRadio component. I have made the selectOneRadio hidden in #PostConstruct, which should be display on select inputText.
<h:panelGrid id="panelgrid">
<p:panel id="panel" >
<h:outputLabel value="Name: " for="name" />
<p:inputText id="name" value="#{userBean.name}" immediate="true">
<p:ajax event="onselect" update="city" listener="#{userBean.showName}" />
</p:inputText>
<p:selectOneRadio id="city" value="#{userBean.city}" layout="grid" columns="3" rendered="#{userBean.displayName}" >
<f:selectItems value="#{userBean.cities}" var="c" itemLabel="#{city}" itemValue="#{city}" />
</p:selectOneRadio>
</p:panel>
</h:panelGrid>
The bean code is like:
#PostConstruct
public void init() {
displayName = false;
}
public boolean isShowName() {
return true;
}
...
But some how this is not working. I'm using JSF2.0 with primefaces 5.2.

Answer 1

I found the solution.
<h:form id="frm">
<h:panelGrid id="panelgrid">
<p:panel id="panel" >
<h:outputLabel value="Name: " for="name" />
<p:inputText id="name" value="#{userBean.name}" immediate="true" onkeypress="#{userBean.showName}">
<p:ajax event="change" update="frm:panelgrid" listener="#{userBean.inputcangeeListener}" />
</p:inputText>
</p:panel>
<p:panel id="p2" rendered="#{userBean.displayName}">
<p:selectOneRadio id="city" value="#{userBean.city}" layout="grid" columns="3">
<f:selectItems value="#{userBean.cities}" var="c" itemLabel="#{city}" itemValue="#{city}" />
</p:selectOneRadio>
</p:panel>
</h:panelGrid>
</h:form>
And my managed bean looks like-
#PostConstruct
public void init() {
displayName = false;
}
public boolean isShowName(){
return displayName;
}
public void inputcangeeListener(javax.faces.event.AjaxBehaviorEvent changeEvent){
setDisplayName(true);
cities = new ArrayList<>();
cities.add("pune");
cities.add("KOL");
}
Thanks for your response.