Page History

...

The most common repeater is wicket.ListView, but there are also a number of components in the wicket-extensions' repeaters package.

FAQ

Q1. I added behavior (for example a SimpleAttributeModifier) to the ListView but I do not see its results in the output. Why?
Q2. I called ListView#setRenderBodyOnly(falsetrue) but the enclosing tags are still generated. How come?
Q3. My validation messages are cleared. What did I do?

...

A quick introduction

Code:

    List list = Arrays.asList(new String[] { "a", "b", "c" });
    ListView listview = new ListView("listview", list) {
        protected void populateItem(ListItem item) {
            item.add(new Label("label", item.getModel()));
        }
    }};
add(listview);

Markup:

<span wicket:id="listview">
   this label is: <span wicket:id="label">label</span><br/>
</span>

...

Using form components in a repeater

You can put anything in the repeater, including FormComponents. You can bind values to the form components through IModels just as if they were in a regular form.

...

The variable userList is initialized as follows:

  List listuserList = Arrays.asList(
    new User[] {
        new User("FirstA", "LastA"),
        new User("FirstB", "LastB"),
        new User("FirstC", "LastC")
      });

...

class User {
    String _first, _last;

    public User(String _first, String _last) {
        this._first = _first;
        this._last = _last;
    }

    public String getFirstname() { return _first; }
    public String getLastname() { return _last; }
}

Accessing the cell/row index:

protected void populateItem(ListItem item) {
	// cell index
	item.getIndex();

	// row index
	((Item)item.getParent().getParent()).getIndex();
}

Optimizing the example with PropertyListView

...