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POModel isn't updatd on AJAX submit link invocation
 

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  1. POModel isn't updatd on AJAX submit link invocation
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    <p>I'm trying to implement an AJAXfied Wicket list view. On my research I stumbled upon the code on <a href="http://www.oktech.hu/kb/adding-and-removing-rows-wicket-listview-via-ajax" rel="nofollow">this site</a> and modified it a bit.</p> <p>The model is not updated properly. So whenever a value is entered in a text field, it is forgotten if the AJAX submit link is invoked (the text field is empty). Why does this happen? I don't see any issue with this code. Wicket version is 1.5.2.</p> <p>Here is the Java code:</p> <pre><code>// Initialization of form ... // List all rows ArrayList&lt;String&gt; rows = new ArrayList&lt;String&gt;(2); rows.add(new String()); rows.add(new String()); final ListView&lt;String&gt; lv = new ListView&lt;String&gt;("rows", rows) { @Override protected void populateItem(ListItem&lt;String&gt; item) { int index = item.getIndex() + 1; item.add(new Label("index", index + ".")); TextField&lt;String&gt; text = new TextField&lt;String&gt;("text", item.getModel()); item.add(text); } }; rowPanel.add(lv); AjaxSubmitLink addLink = new AjaxSubmitLink("addRow", form) { @Override protected void onError(AjaxRequestTarget target, Form&lt;?&gt; form) { if (target != null) target.add(rowPanel); } @Override protected void onSubmit(AjaxRequestTarget target, Form&lt;?&gt; form) { lv.getModelObject().add(new String()); if (target != null) target.add(rowPanel); } }; addLink.setDefaultFormProcessing(false); rowPanel.add(addLink); ... </code></pre> <p>And here is the mark up:</p> <pre><code>&lt;div wicket:id="rowPanel"&gt; &lt;span wicket:id="rows"&gt; &lt;span wicket:id="index"&gt;1.&lt;/span&gt; &lt;input type="text" wicket:id="text"/&gt; &lt;/span&gt; &lt;a href="#" wicket:id="addRow"&gt;Add row&lt;/a&gt; &lt;/div&gt; </code></pre>
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      1. VTUpMod
    1. COyou to call the setReuseItems(true) on the List. Also, you can have a look at the example here: http://wicketinaction.com/2008/10/repainting-only-newly-created-repeater-items-via-ajax/
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      1. USbert
    2. CO@bert Please, repost your comment as an answer. This is exceedingly likely to be the right answer, and is also pointing the OP to the right direction with the link. I will if you don't! :-)
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      1. USXavi López
    3. CO@Xavi López: thanks, will do. Glad i beat you to an answer ;)
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      1. USbert
 

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