listbox with nonSelectabletags inplace new listitem

asked 2014-06-11 13:45:31 +0800

javiut gravatar image javiut flag of Venezuela, Bolivarian Republic of
90 1 5

i have a listbox like this

<listbox nonselectableTags="">
    <listcell><textbox inplace='true'/>

every time i click on the textbox the listitem becomes selected this is my expected behavior but when i try to add a new Listitem by adding a new class to model

like this

listbox.getModel().add(new Student());

i have try to set selected the lastitem with


and seems to selected but when i think do the onAfterRender ZK selected the last listitem which was selected by hand.

my question is in this scenario how can i selected the last listitem added..

thanks a lot

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mvvm or mvc?

chillworld ( 2014-06-11 13:55:15 +0800 )edit

is mvc style chillworld

javiut ( 2014-06-11 14:28:11 +0800 )edit

3 Answers

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answered 2014-06-13 05:53:20 +0800

cor3000 gravatar image cor3000
6280 2 7

updated 2014-06-13 05:55:37 +0800

If you are using a listbox with a model (doesn't matter if MVC or MVVM) you need to control the selection via the model.

As shown in this example on zkfiddle.

So simply call model.clearSelection() and model.addToSelection(newValue);

If you retrieve the model from the listbox, you'd have to cast to org.zkoss.zul.ext.Selectable<E> in order to get access to the clearSelection and addToSelection methods.

Of course this implies that your model implements the Selectable interface which is the case anyway for all AbtractListModel implementations.


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very good!!!

mhj ( 2014-06-14 02:17:30 +0800 )edit

answered 2014-06-11 23:27:12 +0800

mhj gravatar image mhj flag of Brazil
806 1 7

Hello javiut, have you tried with listbox.selectItem((Listitem) listbox.getLastChild()); ?

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answered 2014-06-16 10:27:30 +0800

cyiannoulis gravatar image cyiannoulis
1201 10

As Robert said, if you are using a model to populate your listbox, you have to control the selections through this model. Here is a working MVC example:

<?page title="MVC Students" contentType="text/html;charset=UTF-8"?>
<window apply="snippets.MvcStudentsController"
        width="100%" height="100%"

    <n:h1>MVC Students</n:h1>

    <hlayout valign="middle" width="50%">
        <button id="addButton" label="Add Student" sclass="btn btn-primary" />
        <textbox id="txtCode" placeholder="Code" width="70px" sclass="form-control" />
        <textbox id="txtName" placeholder="Name" width="200px" sclass="form-control" />
        <intbox id="txtGrade" placeholder="Grade" width="70px" sclass="form-control" />
        <label hflex="1" />     
        <n:h3><n:span class="label label-default glyphicon glyphicon-user">
            <label id="lblCount" />
        <separator width="20px"></separator>

    <listbox id="studentsList" model="${$composer.students}" width="50%">
            <listheader label="Code" width="70px" />
            <listheader label="Name" hflex="1" />
            <listheader label="Grade" width="80px" />
        <template name="model">
                <listcell><label value="${each.code}" /> </listcell>
                <listcell><label value="${each.name}" /> </listcell>
                <listcell><intbox inplace="true" value="${each.grade}" 
                    width="70px" sclass="txt-grade" /></listcell>

    <n:h3><label id="lblSelection" /></n:h3>

And the composer:

public class MvcStudentsController extends SelectorComposer<Component> {

    private static final long serialVersionUID = 1L;

    private ListModelList<Student> students = createData();

    @Wire private Listbox studentsList;
    @Wire private Label lblCount;
    @Wire private Label lblSelection;
    @Wire private Textbox txtCode;
    @Wire private Textbox txtName;
    @Wire private Intbox txtGrade;

    public void doAfterCompose(Component comp) throws Exception {

    @Listen("onClick = #addButton")
    public void onClickAddButton() {
        if (txtCode.getValue().isEmpty() || txtName.getValue().isEmpty()) {
            Clients.showNotification("Please type a valid 'code' and 'name' ");
         * Add a new student to the model
        Student student = new Student(txtCode.getValue(), txtName.getValue(), txtGrade.getValue()); 
        students.add( student );
         * Update the selection
         * Update the count label

     * Set row selection when entering a grade field
    @Listen("onFocus = .txt-grade")
    public void onFocusGrade(Event event) {
        Listitem listitem = (Listitem) event.getTarget().getParent().getParent();
        Student selectedStudent = (Student) listitem.getValue();

     * Update the selection status label every time a selection is made
    @Listen("onSelect = #studentsList")
    public void onStudentSelected(Event event) {
        Listitem selectedItem = studentsList.getSelectedItem();
        Student selectedStudent = (Student) selectedItem.getValue();

     * Update the selections in the data model. 
     * Selections in the data model are reflected automaticaly 
     * to the listbox widget.
    private void updateSelection(Student student) {
        List<Student> selections = new ArrayList<Student>();

    private void updateSelectionStatus(Student student) {
        lblSelection.setValue("Current selection: " + student.getName());

    private void updateCount() {
        lblCount.setValue("" + students.getSize());

    public ListModelList<Student> createData() {

        List<Student> data = new ArrayList<Student>();
        data.add(new Student("1", "Costas", 10));
        data.add(new Student("2", "Nick", 20));
        data.add(new Student("3", "Zoe", 30));
        data.add(new Student("4", "Helen", 40));
        data.add(new Student("5", "Paul", 50));
        return new ListModelList<Student>(data);

    public ListModel<Student> getStudents() {
        return students;


Hope that helps


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Asked: 2014-06-11 13:45:31 +0800

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Last updated: Jun 16 '14

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