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    <p><code>ExternalLink</code> takes a model parameter that supplies a link URL. That model can be pretty much anything. Here's one that generates random links (<code>LoadableDetachableModel</code> is a convenience implementation of a dynamic model):</p> <pre><code>IModel&lt;String&gt; model=new LoadableDetachableModel&lt;String&gt;() { private static final long serialVersionUID = 1L; @Override protected String load() { // this class does not really exist return LinkRandomizer.getNewRandomUrl(); } }; add(new ExternalLink("link", model)); </code></pre> <p>See:</p> <ul> <li><a href="https://cwiki.apache.org/WICKET/working-with-wicket-models.html" rel="nofollow noreferrer">Working with Wicket Models</a></li> <li><a href="http://www.javaranch.com/journal/2008/10/using-wicket-labels-and-links.html" rel="nofollow noreferrer">Using Wicket Labels and Links</a></li> <li><a href="http://wicket.apache.org/apidocs/1.4/org/apache/wicket/markup/html/link/ExternalLink.html" rel="nofollow noreferrer">ExternalLink API docs</a></li> <li><a href="http://wicket.apache.org/apidocs/1.4/org/apache/wicket/model/LoadableDetachableModel.html" rel="nofollow noreferrer">LoadableDetachableModel API docs</a></li> </ul> <hr> <p>It turns out the OP needs a <code>ListView</code> with <code>ExternalLink</code>s.</p> <p>Here is a Panel with a list of links:</p> <pre><code>public class FooPanel extends Panel { private static final long serialVersionUID = 1L; public static class LinkBean{ private String link; private String label; public LinkBean(final String link, final String label) { this.link = link; this.label = label; } public String getLabel() { return this.label; } public String getLink() { return this.link; } public void setLabel(final String label) { this.label = label; } public void setLink(final String link) { this.link = link; } } public FooPanel(final String id) { super(id); this.add(new ListView&lt;LinkBean&gt;("item", Arrays.asList( new LinkBean("http://www.google.com/","Google"), new LinkBean("http://www.ebay.com/", "Ebay")) ) { private static final long serialVersionUID = 1L; @Override protected void populateItem(final ListItem&lt;LinkBean&gt; item) { item.add(new ExternalLink("link", item.getModelObject().getLink()) .add(new Label("label",item.getModelObject().getLabel())) ); } }); } } </code></pre> <p>And here is the associated HTML:</p> <pre><code>&lt;html&gt;&lt;head&gt;&lt;/head&gt;&lt;body&gt; &lt;wicket:panel&gt; &lt;div class="linkItem" wicket:id="item"&gt; &lt;a href="" wicket:id="link" &gt; &lt;wicket:container wicket:id="label" /&gt; &lt;/a&gt; &lt;/div&gt; &lt;/wicket:panel&gt; &lt;/body&gt;&lt;/html&gt; </code></pre> <p>The Output will be something like this:</p> <pre><code>&lt;div class="linkItem"&gt;&lt;a href="http://www.google.com/"&gt;Google&lt;/a&gt;&lt;/div&gt; &lt;div class="linkItem"&gt;&lt;a href="http://www.ebay.com/"&gt;Ebay&lt;/a&gt;&lt;/div&gt; </code></pre> <p>See</p> <ul> <li><a href="https://cwiki.apache.org/WICKET/listview-and-other-repeaters.html" rel="nofollow noreferrer">ListView and other repeaters</a> (an ancient tutorial, careful: this relates to the older non-generic version of ListView in 1.3.x)</li> <li><a href="http://wicketstuff.org/wicket14/repeater/" rel="nofollow noreferrer">Wicket Examples: Repeater Views</a> (ListView is not covered, but the handling is pretty identical)</li> <li><a href="http://wicket.apache.org/apidocs/1.4/org/apache/wicket/markup/html/list/ListView.html" rel="nofollow noreferrer">ListView Api docs</a></li> <li><a href="http://www.manning.com/dashorst/" rel="nofollow noreferrer">Wicket in Action</a> (A very good book about Wicket you should consider buying)</li> </ul>
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    1. COI need to add ExternalLink within ListView in the runtime. Your code is useful, but I still can't get the idea how to do that...
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    2. COOK, see my update
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    3. COThank you, very much. This code has solved my problems.
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