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POjQuery Chosen not firing onchange event when value is changed through JS
 

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  1. POjQuery Chosen not firing onchange event when value is changed through JS
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    <h1><a href="http://jsfiddle.net/ult_combo/y6BCP/" rel="nofollow noreferrer"><strong>JSFiddle</strong></a></h1> <p>I've set up a <code>select</code> with 3 <code>option</code>s (1 blank) in the fiddle. When I switch from <code>foo</code> to <code>bar</code> manually, the <code>change</code> listener fires normally.</p> <p>Now if I reset the <code>select</code> through JS with the <a href="https://stackoverflow.com/questions/7897760/jquery-chosen-reset">code posted in some answers here</a>, the <code>change</code> event does not fire for the newly selected blank option, furthermore, if I select the option which was selected before clicking in the <code>reset</code> button the <code>onchange</code> event won't fire either.</p> <p>I'm sure the <code>select</code>'s value <strong>is</strong> being changed with the function above, which can be seen in this <a href="http://jsfiddle.net/ult_combo/y6BCP/1/" rel="nofollow noreferrer"><strong>fiddle</strong></a>, but the <code>select</code>'s <code>onchange</code> event simply doesn't fire.</p> <p>I've also tried <code>onchange</code>, <code>onclick</code>, <code>oninput</code> events to no avail. Right now I'm wondering if I should use a MutationObserver or remove the rendered chosen element from the DOM and create another, but I'm probably overthinking it. Any help is appreciated.</p> <p>Also:</p> <p>This answer helped me a lot: <a href="https://stackoverflow.com/questions/7897760/jquery-chosen-reset">jQuery Chosen reset</a></p> <p>This answer didn't help: <a href="https://stackoverflow.com/questions/8455569/how-to-fire-onchange-event-in-chosen-prototype-javascript-select-box">how to fire onchange event in chosen prototype javascript select box?</a></p> <p>Code for future reference if jsfiddle.net is taken down:</p> <p><strong>HTML</strong></p> <pre><code>&lt;div id="wrapper"&gt; &lt;select id="chosen"&gt; &lt;option value="!!EMPTY VALUE!!"&gt;&lt;/option&gt; &lt;option value="foo"&gt;foo&lt;/option&gt; &lt;option value="bar"&gt;bar&lt;/option&gt; &lt;/select&gt; &lt;/div&gt; &lt;br&gt; &lt;button id="reset"&gt;Reset&lt;/button&gt; </code></pre> <p><strong>JS</strong></p> <pre><code>$(function() { $('#chosen').chosen(); $('#wrapper').on('change', '#chosen', function() { console.log('onchange: ' + this.value); }); $('#reset').click(function() { $("#chosen").val('').trigger("liszt:updated"); //doesn't work //$("#chosen").prop('selectedIndex', 0).trigger("liszt:updated"); //doesn't work either console.log('reset: ' + $('option:selected').val()); }); }); </code></pre>
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    1. CO**ASP.Net Webforms**: I came across this question when my app seemed to have this problem but it turned out to be a Javascript error caused by ASP WebForm Validators. See this [jQuery-UI ticket](http://bugs.jqueryui.com/ticket/4071#comment:9)
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