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    copied!<p>The dialog has to be outside the table. Also, in the delete button you are updating component ":studyPlanEditForm:display". I don't see that component in the snippet. The panel inside the dialog should have id="display", because the dialog needs to be updated.</p> <p>You can see a working example of a similar use casi in primefaces <a href="http://www.primefaces.org/showcase/ui/datatableRowSelectionByColumn.jsf" rel="nofollow">showcase</a>. You only have to replace the dialog that shows content for the confirm message, and add a button that deleted the row. The managed bean already has a reference to the selected row. </p> <p>This is how the delete button would look like </p> <pre><code>&lt;p:column headerText="Delete" width="50" style="text-align:center"&gt; &lt;p:commandButton id="showDialogButton" update=":studyPlanEditForm:display" onclick="cdDialog.show()" value="delete"&gt; &lt;f:setPropertyActionListener value="#{selectedRow}" target="#{bean.selectedRow}" /&gt; &lt;/p:commandButton&gt; &lt;/p:column&gt; </code></pre> <p>And this is the dialog (has to be outside table):</p> <pre><code>&lt;p:dialog widgetVar="cdDialog" appendToBody="true" header="Are you sure to delete this substudyplan?"&gt; &lt;p:panel id="display"&gt; &lt;p:commandButton value="Yes" process="@this" action="#{editBean.deleteSubStudyPlan}" onclick="cdDialog.hide();" update=":studyPlanEditForm"/&gt; &lt;p:commandButton value="No" onclick="cdDialog.hide();" type="button"/&gt; &lt;/p:panel&gt; &lt;/p:dialog&gt; </code></pre> <p>So the managed bean has an attribute called <code>selectedRow</code> and at the time method deleteSubStudyPlan is invoked, this attribute contains the entity that belongs to the selected row in the table.</p>
 

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