Apache Wicket How to create a ListView with RadioGroup

Here is an example of showing a list of Employees under a department. We are using the RadioGroup and ListView Component for this example.

final Department department = (Department) this.getModelObject();

   ArrayList<Employee> employeesList = department.getEmployeesList();

//Create a Radio Group and then add a List View to this Radio Group As shown below.

RadioGroup<Integer> employeesRadioGroup = new RadioGroup<Integer>("employeesRadioGroup", new Model<Integer>(new Integer(0)));

employeesRadioGroup.add(new AjaxFormChoiceComponentUpdatingBehavior(){

/**

* 

*/

private static final long serialVersionUID = 1L;

@Override

protected void onUpdate(AjaxRequestTarget target) {

if(LOGGER.isDebugEnabled())

LOGGER.debug("Employee Radio Selected. You can add an Ajax Behavior on the selection of radio button.");

}

});

employeesRadioGroup.setOutputMarkupId(true);

employeesRadioGroup.setOutputMarkupPlaceholderTag(true);

employeesRadioGroup.setRenderBodyOnly(false);

add(employeesRadioGroup);

ListView empListView = new ListView("employeeListView", employeesList){

/**

*

* @see org.apache.wicket.markup.html.list.ListView#populateItem

*      (org.apache.wicket.markup.html.list.ListItem)

*/

@Override

protected void populateItem(final ListItem item) {

Employee employee = ((Employee)item.getModelObject());

String empId = employee.getEmployeeId();

String empName = employee.getEmployeeName();

if (LOGGER.isDebugEnabled()) {

LOGGER.debug("Show Employee Record with Id :" + empId);

}

item.add(new Radio<Integer>("empSelectRadio", new Model<Integer>(item.getIndex()), employeesRadioGroup));

item.add(new Label("empId", empId).setEscapeModelStrings(false));

item.add(new Label("empName", empName) .setEscapeModelStrings(false));

}

};

if(employeesList.size() == 0){

error("No Employees Records Found.");

}

empListView.setOutputMarkupId(true);

empListView.setOutputMarkupPlaceholderTag(true);

employeesRadioGroup.add(empListView);

Here is the corresponding HTML to be added to your wicket Panel.

<table style="" wicket:id="employeesRadioGroup">

    <tr wicket:id="empListView">

        <td>

              <input type="radio" wicket:id="empSelectRadio"> <label wicket:id="empId">[Employee Id]</label>                                

        </td>

        <td>

            <a href="" wicket:id="empName">[Employee Name]</a>                                

        </td>

     </tr>

</table>