I am using JSF2 and Java to build a web application. I want to build a form like the one at the picture below:
When somebody unchecks the checkbox the form should disappear:
Here is an example with gwt.
So far,
I tried some stuff with the <f:ajax> tag and an PropertyActionListener in the managedBean but it didn't work. Can somebody give me an example or at least some hints to accomplish my goal. I would be really thankfull
Use <f:ajax render="idOfPanelContainingInputFields"> in the checkbox and give the component containing the input fields a rendered attribute which depends on the checkbox's state. No need for another JS code clutter.
<h:form>
<fieldset>
<legend>
<h:selectBooleanCheckbox binding="#{showUserInfo}">
<f:ajax render="idOfPanelContainingTextBox" />
</h:selectBooleanCheckbox>
<h:outputText value="User information" />
</legend>
<h:panelGroup id="idOfPanelContainingTextBox" layout="block">
<ui:fragment rendered="#{not empty showUserInfo.value and showUserInfo.value}">
<p>
<h:outputLabel for="firstName" value="First name:" />
<h:inputText id="firstName" value="#{bean.user.firstName}" />
</p>
</ui:fragment>
</h:panelGroup>
</fieldset>
</h:form>
The above example binds the checkbox to the view, you can of course also bind it to a boolean bean property, you can then remove the not empty check from the rendered attribute.
<h:selectBooleanCheckbox value="#{bean.showUserInfo}">
...
<ui:fragment rendered="#{bean.showUserInfo}">
As suggested by amorfis, the idea of using Ajax here is not the best solution, as you will do a call to your server for a client-side manipulation.
The best solution is to use Javascript to hide your component(s). For example, if all your labels and input texts are nested in a <h:panelGrid> component, you can do that:
<script type="text/javascript">
function hideOrShow(show) {
// Get the panel using its ID
var obj = document.getElementById("myForm:myPanel");
if (show) {
obj.style.display = "block";
} else {
obj.style.display = "none";
}
}
</script>
<h:form id="myForm">
<h:selectBooleanCheckbox id="myCheckbox" onclick="hideOrShow(this.checked);"/>
<h:panelGrid id="myPanel" columns="2">
...
</h:panelGrid>
</h:form>
You could do it by jQuery, or another JavaScript. It is also possible by <f:ajax>, but it connects to the server, which you don't need here.
By jQuery you can just hide the form, not changing the DOM. As far as I understand, it should be enough.
Post some .xhtml if you want more :)
