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POSet focus on an element that has been partially rendered
 

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    <p>I have a form with an input element that updates a panel containing form elements on a <code>blur</code> event. I want the user to be able to navigate using the <code>tab</code> key. So leaving the first input using the <code>tab</code> should give focus to the first form element of the rendered form.</p> <p>Input element with <code>blur</code> event:</p> <pre><code>&lt;h:inputText class="text" id="profileLocation" value="#{cc.attrs.managedBean.profileLocation}"&gt; &lt;f:validateRegex pattern="([A-Z]{2}[A-Z0-9])(?:\.(\d+))?(\.\d+)?(\.\d+)?" /&gt; &lt;f:ajax event="blur" render="assertionLocationPanel" listener="#{cc.attrs.managedBean.updateMessageLocation}"/&gt; &lt;/h:inputText&gt; </code></pre> <p>It will render the <code>assertionLocationPanel</code> defined as:</p> <pre><code>&lt;p:outputPanel id="assertionLocationPanel"&gt; &lt;h:inputText value="#{cc.attrs.managedBean.property}"&gt; &lt;/h:inputText&gt; &lt;/p:outputPanel&gt; </code></pre> <p>When using the <code>tab</code> key, the panel is updated but the focus is not on the input element. I guess this is because of the rendering. If the panel is not updated, the focus is set to the correct element.</p> <p><strong>Solution</strong></p> <p>Call a javascript function specified in the <code>onevent</code> attribute:</p> <pre><code>&lt;f:ajax event="blur" render="profileLocationErrorMessage assertionLocationPanel" listener="#{cc.attrs.managedBean.updateMessageLocation}" onevent="setFocus"/&gt; </code></pre> <p>the define the JS function as:</p> <pre><code>&lt;script type="text/javascript"&gt; function setFocus() { $('#ConditionalComposite-ConditionalForm-1-ProfileLocation-segmentInstanceNumber').focus(); } &lt;/script&gt; </code></pre> <p>I had to call the JS function <code>setFocus</code> instead of calling <code>$('#ConditionalComposite-ConditionalForm-1-ProfileLocation-segmentInstanceNumber').focus();</code> in the <code>onevent</code> attribute because it did not work. I kept the generated ids because I use composite, also I redefined <code>javax.faces.SEPARATOR_CHAR</code> to <code>-</code>.</p> <p>If you using the regular <code>:</code> separator, you have to escape the separator as <code>#ConditionalComposite\\:ConditionalForm1\\:ProfileLocation\\:segmentInstanceNumber</code>.</p>
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    1. COIf you find an answer to your own question, post it as an answer and accept it. This is the recommended practice. On another note, your javascript-function will execute the the `focus()` three times (once for each phase of the ajax-request). To prevent that, it should take a parameter called `data`, and only execute the `focus()` if `data.status == 'success'`.
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      1. USBjörn Pollex
 

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