ui：repeat中的f：selectItem-不起作用

Question

I want to loop through List and make each element a checkbox. The code which i have is:

<h:outputText value="Choose" />
<p:selectManyCheckbox value="#{filterTypeBean.selectedFilterTypes}">
    <ui:repeat var="checkbox" value="#{filterTypeBean.listFilterTypes()}"
        varStatus="status">
        <!-- <h:outputText value="#{checkbox.filterTypeName}" /> -->
        <f:selectItem itemLabel="#{checkbox.filterTypeName}"
            itemValue="#{checkbox}" />
    </ui:repeat>
</p:selectManyCheckbox>

My bean class contains:

private List<FilterType> selectedFilterTypes;

public List<TFilterType> getSelectedFilterTypes() {
        return selectedFilterTypes;
}

public void setSelectedFilterTypes(List<TFilterType> selectedFilterTypes) {
    this.selectedFilterTypes = selectedFilterTypes;
}

public List<FilterType> listFilterTypes() {
        EntityManager em = HibernateUtil.getEntityManager();
        Query q = em.createQuery("select u from FilterType u");
        List<FilterType> filterList = q.getResultList();
        for (FilterType filterType : filterList) {
            System.out.println(filterType.getFilterTypeName());
        }
        return filterList;
    }

I don't got the expected result - no checkboxes appear in the filterList (I have nothing on the screen).If i uncomment the line for printing the names of Filter Type --> I got the names. Please, help me to fix this issue.

Answer 1

You should use f:selectItems instead, replace

<ui:repeat var="checkbox" value="#{filterTypeBean.listFilterTypes()}"
    varStatus="status">
    <!-- <h:outputText value="#{checkbox.filterTypeName}" /> -->
    <f:selectItem itemLabel="#{checkbox.filterTypeName}"
        itemValue="#{checkbox}" />
</ui:repeat>

by something like

<f:selectItems var="checkbox" value="#{filterTypeBean.listFilterTypes()}" itemLabel="#{checkbox.filterTypeName}" itemValue="#{checkbox}" />

but I don't think your itemValue="#{checkbox}" will work since this your entire object containing description too.

More info :

• f:selectItems