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POjQuery .on() event doesn't work for dynamically added element
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  1. POjQuery .on() event doesn't work for dynamically added element
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    copied!<p>I'm making a project where a whole div with buttons is being inserted dynamically when user click a button, and inside that div there's a button, which when the user click on it, it does something else, like alerting something for example. </p> <p>The problem is when i press on that button in the dynamically added div, nothing happens. The event doesn't fire at all.</p> <p>I tried to add that div inside the HTML and try again, the event worked. So i guess it's because the div is dynamically added.</p> <p>The added div has a class <code>mainTaskWrapper</code>, and the button has a class <code>checkButton</code>. The event is attached using <code>.on()</code> at the end of <code>script.js</code> file below.</p> <p>Here's my code :</p> <p><strong>helper_main_task.js :</strong> (that's the object that adds the div, you don't have to read it, as i think it's all about that div being dynamically added, but i'll put it in case you needed to)</p> <pre><code>var MainUtil = { tasksArr : [], catArr : ["all"], add : function(){ var MTLabel = $("#mainTaskInput").val(), //task label MTCategory = $("#mainCatInput").val(), //task category MTPriority = $("#prioritySlider").slider("value"), //task priority MTContents = $('&lt;div class="wholeTask"&gt;\ &lt;div class="mainTaskWrapper clearfix"&gt;\ &lt;div class="mainMarker"&gt;&lt;/div&gt;\ &lt;label class="mainTaskLabel"&gt;&lt;/label&gt;\ &lt;div class="holder"&gt;&lt;/div&gt;\ &lt;div class="subTrigger"&gt;&lt;/div&gt;\ &lt;div class="checkButton"&gt;&lt;/div&gt;\ &lt;div class="optTrigger"&gt;&lt;/div&gt;\ &lt;div class="addSubButton"&gt;&lt;/div&gt;\ &lt;div class="mainOptions"&gt;\ &lt;ul&gt;\ &lt;li id="mainInfo"&gt;Details&lt;/li&gt;\ &lt;li id="mainEdit"&gt;Edit&lt;/li&gt;\ &lt;li id="mainDelete"&gt;Delete&lt;/li&gt;\ &lt;/ul&gt;\ &lt;/div&gt;\ &lt;/div&gt;\ &lt;/div&gt;'); this.tasksArr.push(MTLabel); //setting label MTContents.find(".mainTaskLabel").text(MTLabel); //setting category if(MTCategory == ""){ MTCategory = "uncategorized"; } MTContents.attr('data-cat', MTCategory); if(this.catArr.indexOf(MTCategory) == -1){ this.catArr.push(MTCategory); $("#categories ul").append("&lt;li&gt;" + MTCategory +"&lt;/li&gt;"); } $("#mainCatInput").autocomplete("option", "source",this.catArr); //setting priority marker color if(MTPriority == 2){ MTContents.find(".mainMarker").css("background-color", "red"); } else if(MTPriority == 1){ MTContents.find(".mainMarker").css("background-color", "black"); } else if(MTPriority == 0){ MTContents.find(".mainMarker").css("background-color", "blue"); } MTContents.hide(); $("#tasksWrapper").prepend(MTContents); MTContents.slideDown(100); $("#tasksWrapper").sortable({ axis: "y", scroll: "true", scrollSpeed : 10, scrollSensitivity: 10, handle: $(".holder") }); } }; </code></pre> <p><strong>script.js :</strong> (the file where the .on() function resides at the bottom)</p> <pre><code>$(function(){ $("#addMain, #mainCatInput").on('click keypress', function(evt){ if(evt.type == "click" || evt.type =="keypress"){ if((evt.type =="click" &amp;&amp; evt.target.id == "addMain") || (evt.which == 13 &amp;&amp; evt.target.id=="mainCatInput")){ MainUtil.add(); } } }); //Here's the event i'm talking about : $("div.mainTaskWrapper").on('click', '.checkButton' , function(){ alert("test text"); }); }); </code></pre>
 

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