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POWicket: (how) can I associate an AjaxCheckBox to the CheckGroupSelector?
 

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  1. POWicket: (how) can I associate an AjaxCheckBox to the CheckGroupSelector?
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    <p>I have a problem similar to this question: <a href="https://stackoverflow.com/questions/5988905/wicket-can-checkgroup-be-ajax-enabled">Wicket: can Checkgroup be Ajax enabled?</a></p> <p>I'm using a ListView where each Item has a checkbox. I also have a "select all" checkbox. I am using a <code>CheckGroup</code>, <code>CheckGroupSelector</code> and <code>Check</code> and everything works great. Now there is a new requirement to change the state on some other controls on the page when the checkboxes are updated.</p> <p>Nicktar's suggestion in the above linked question was the first that came to my mind, too, but I haven't been able to find out how it is possible to use <code>AjaxCheckBox</code> with <code>CheckGroup</code>/<code>CheckGroupSelector</code>. According to the doc you have to use <code>Check</code>.</p> <p>But in <a href="http://mail-archives.apache.org/mod_mbox/wicket-users/200807.mbox/%3C23eb48360807221008g407b1ed8ue01ac84716d18f9b@mail.gmail.com%3E" rel="nofollow noreferrer" title="Igor Vaynberg&#39;s mail">this mail from 2008</a>, Igor Vaynberg also states that it is possible to use <code>AjaxCheckBox</code> in a <code>CheckGroup</code>. </p> <p>I tried it with just replacing where I used <code>Check</code> with the <code>AjaxCheckBox</code>, but it didn't work, the <code>CheckGroupSelector</code> didn't find the checkboxes anymore.</p> <p>I also looked into using the <code>onSelectionChanged</code> method in <code>CheckGroup</code>, but I'd like to avoid using this as it triggers another roundtrip to the server, as far as I understood.</p> <p>Can someone give me a hint? Or is there another nice solution for this?</p> <p>By the way, I'm using Wicket 1.4.</p>
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