Jquery Call onchange function on dynamically created dropdown

Question

How to Call onchange function on dynamically created dropdown. Code is like below : HTML Code :

<img id="addColumn" src="images/icons/panel_add.gif" alt="Add Column" onclick="addColumnDynamically('q_123_456_789')"/>
<div class = "q_123_456_789"></div>

Javascript

function addColumnDynamically(currentObjId){
maxRepeatedColumnSeq = maxRepeatedColumnSeq+1;
var dropDownIdStr = currentObjId;
dropDownIdStr = dropDownIdStr.substring(dropDownIdStr.indexOf("_") + 1);;
dropDownIdStr = "q_drop_"+dropDownIdStr+"_"+maxRepeatedColumnSeq;
alert("idStr........"+dropDownIdStr);
$("."+currentObjId).append('<div class="Content22">\
        <br>\
        <input class="input numberElement" type="text" style="width: 25%" id='+currentObjId+"_"+maxRepeatedColumnSeq+'>\
        <select class="selectStyle1" style="width: 25%" id='+dropDownIdStr+'<option value=""></option><option value=""></option><option value="Hours">Hours</option><option value="Days">Days</option><option value="Weeks">Weeks</option><option value="Months">Months</option><option value="Years">Years</option> >\
        <img src="images/icons/panel_remove.gif" onclick="removeColumn(this)">\
        <br>\
    </div>');
 $('#'+currentObjId+"_"+maxRepeatedColumnSeq).on('blur', function () {
alert("Hiii....");
});
alert("Hiii.."+dropDownIdStr);
$('#'+dropDownIdStr).on('change', function () {
alert("getElementById...."+document.getElementById(dropDownIdStr));
});
}

onblur function is calling but onchange is not calling. How can i do this ?

Answer 1

In your code change onchange to change! Also, because the element is dynamically created is better to use:

$(document).on(event, element, handler)

In your case:

$(document).on('change', '#'+dropDownIdStr, function () {
alert("getElementById...."+document.getElementById(dropDownIdStr));
});

Answer 2

The event is 'change', not 'onchange'.

$('#' + dropDownIdStr).on('change', function () {
    alert("getElementById...." + document.getElementById(dropDownIdStr));
});

Answer 3

Take a look at the code: You missed the closing ">" and the closing "</select>"

 $(document).ready(function(){ $(document).on('click', '#addColumn', function(evt){ addColumnDynamically('q_123_456_789')} ); }) function addColumnDynamically(currentObjId){ var maxRepeatedColumnSeq = maxRepeatedColumnSeq+1; var dropDownIdStr = currentObjId; dropDownIdStr = dropDownIdStr.substring(dropDownIdStr.indexOf("_") + 1);; dropDownIdStr = "q_drop_"+dropDownIdStr+"_"+maxRepeatedColumnSeq; alert("idStr........"+dropDownIdStr); $("."+currentObjId).append('<div class="Content22">\\ <br>\\ <input class="input numberElement" type="text" style="width: 25%" id='+currentObjId+"_"+maxRepeatedColumnSeq+'>\\ <select class="selectStyle1" style="width: 25%" id='+dropDownIdStr+'><option value=""></option><option value=""></option><option value="Hours">Hours</option><option value="Days">Days</option><option value="Weeks">Weeks</option><option value="Months">Months</option><option value="Years">Years</option></select>\\ <img src="images/icons/panel_remove.gif" onclick="removeColumn(this)">\\ <br>\\ </div>'); alert("Hiii.."+dropDownIdStr); $('#'+dropDownIdStr).on('change', function () { alert("getElementById...."+document.getElementById(dropDownIdStr)); }); }