I've the below form:
<h:form>
<h:dataTable value="#{bean.items}" var="item">
<h:column>
<h:selectBooleanCheckbox value="#{item.enabled}" valueChangeListener="#{bean.onchangeEnabled}">
<f:ajax event="change" />
</h:selectBooleanCheckbox>
</h:column>
<h:column>#{item.name}</h:column>
</h:dataTable>
</h:form>
I would like to get #{item}
or at least #{item.name}
in the value change listener method:
public void onchangeEnabled(ValueChangeEvent e) {
// I would like to get #{item.name} here too.
}
How can I achieve this?
First of all, the valueChangeListener
is the wrong tool for the job. Use <f:ajax listener>
. Second, event="change"
is the wrong choice in case of checkboxes/radiobuttons because their physical value actually never changes. You should use event="click"
, but this is the default already, so you can just omit it.
All in all, the proper initial code should look like this:
<h:selectBooleanCheckbox value="#{item.enabled}">
<f:ajax listener="#{bean.onchangeEnabled}" />
</h:selectBooleanCheckbox>
with
public void onchangeEnabled(AjaxBehaviorEvent event) { // Note: event argument is optional.
// ...
}
Once fixed it like that, then you can easily make use of EL 2.2 capability to pass method arguments:
<h:selectBooleanCheckbox value="#{item.enabled}">
<f:ajax listener="#{bean.onchangeEnabled(item)}" />
</h:selectBooleanCheckbox>
with
public void onchangeEnabled(Item item) {
// ...
}