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  1. PO
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    <p>your code does look pretty good already. How does the <code>CounterControler</code> internally work? (no source given) Alternatives to send the current object might be </p> <ul> <li>to give the object directly as the parameter (you need a fitting converter for that), </li> <li>give it as direct parameter (<code>action="#{AddPollContorler.removeAnswer(answer)}</code>, works from EL 2.2 on), or </li> <li>directly get the current object out of the given ActionEvent</li> </ul> <p>The last point would look like </p> <p>xhtml</p> <pre><code>&lt;h:commandLink action="#{AddPollContorler.removeAnswer}"&gt; &lt;h:graphicImage library="img" name="cross.png" /&gt; &lt;f:ajax render="answers" /&gt; &lt;/h:commandLink&gt; </code></pre> <p>managed bean</p> <pre><code>public void removeAnswer(ActionEvent ev) { Answer selectedItem = null; try { UIDataTable objHtmlDataTable = retrieveDataTable( (UIComponent)ev.getSource()); selectedItem = (Answer) objHtmlDataTable.getRowData(); answers.remove(answer); } catch (NullPointerException e) { // somehow couldn't find the element } } private static UIDataTable retrieveDataTable(UIComponent component) { if (component instanceof UIDataTable) { return (UIDataTable) component; } if (component.getParent() == null) { return null; } return retrieveDataTable(component.getParent()); } </code></pre> <p>I like that one because it takes most logic out of the frontend. Hope you get your rows cleaned with one of that tactics. </p> <p>Also, you only need to mention <code>answers</code> once in <code>&lt;f:ajax render="answers" /&gt;</code></p> <p><strong>EDIT:</strong> Even I don't know why - wrapping a <code>&lt;h:panelGroup layout="block" id=" answersWrapper"&gt;</code> around the <code>&lt;h:dataTable&gt;</code> and rendering that panelGroup worked for me.</p> <pre><code>&lt;h:form id="myForm"&gt; &lt;h:panelGroup id="answerWrapper" layout="block"&gt; &lt;rich:dataTable value="#{myTestBean.answers}" var="answer" id="answers"&gt; &lt;h:column &gt; &lt;h:outputText value="#{answer}"/&gt; &lt;h:commandButton id="button" action="#{myTestBean.doTheAction}"&gt; &lt;f:ajax render=":myForm:answerWrapper" /&gt; &lt;/h:commandButton&gt; &lt;/h:column&gt; &lt;/rich:dataTable&gt; &lt;/h:panelGroup&gt; &lt;/h:form&gt; </code></pre>
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    1. POhow to remove a row <h:datatable> programaticaly
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    1. USL-Ray
    1. USL-Ray
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    1. COCounterControler is a counter and generate numbers from zero to .... . please see my update in the question.
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      1. USRasoul Taheri
    2. COAh okay. Well, if you only need that one for retrieving the right row to delete, that controller might not be needed anymore -yeah! Have you tried the supposed solution? Does it work for you? If yes -set it green :-) - if not, let's work together on it.
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      1. USL-Ray
    3. COthe code that i wrote work good in backing bean. it remove approperiate row from backing bean, in backing bean all thing is good. but i except when i delete a row in the backing bean it remove from xhtml and backing bean. but it remove just from backing bean. im sorry my english is not good.
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      1. USRasoul Taheri
 

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