Catch onchange event for a dynamically created Select using name

Question

I have used Event binding on dynamically created elements? and Get changed value from <select> using jQuery to get to where I am now.

I am creating a Select dropdown dynamically and would like to capture the selected item.

My code is:

$(document).on('click', '#programDetailTablebody button[name="addPDRow"]', function(e) {
    e.preventDefault();
    
    var newRows = "";
                newRows += "<tr><td class='button'><button type='button' name='addPDRow' class = 'buttonFront'><span class='glyphicon glyphicon-plus'></span></button></td>";
                newRows += "<td class='keyvalue'><input class='timeWidth timeClass pdValue' name='timeInput' value='07:00'></input></td>"; //Time
                newRows += "<td class='keyvalue'><select class='form-control activityTypeWidth activityTypeClass pdValue' name='activityTypeInput'>" //Activity Type
                newRows += "<option value='' disabled selected>Select Activity Type</option>" + activityTypeOptions + "</select>"
                newRows += "<td class='keyvalue'><select class='form-control activityWidth activityClass pdValue' name='activityInput'>" //Activity
                newRows += "<option value='' disabled selected>Select Activity</option>" + activityOptions + "</select>"
                newRows += "<td class='keyvalue'><input class='equipmentClass pdValue' name='equipmentInput'></input></td>";//Equip. Needed
                newRows += "<td class='keyvalue'><input class='awardClass pdValue' name='awardInput'></input></td>";//Award
                newRows += "<td class='keyvalue'><input class='leadersClass pdValue' name='leadersInput'></input></td>";//Leaders
                newRows += "<td class='button'><button type='button' name='removePDRow' class = 'buttonFront'><span class='glyphicon glyphicon-minus'></span></button></td></tr>";
        
    $(newRows).insertAfter($(this).closest('tr'));
});

$("select[name='activityTypeInput']").on( 'change', 'option', function (e) {
    e.preventDefault();
    alert("Changed");
    var activityType = $(this).val();
    alert(activityType);
});

This is the page:

The alerts are not triggered when I select an option and there are no errors in the console.

Yusuf T. · Accepted Answer · 2020-11-01 02:21:27Z

1

As in the accepted answer in the link you provided, you can use event binding on the existing parent element (in this case, for example, you can use #programDetailTablebody).

So instead of using

$("select[name='activityTypeInput']").on( 'change', 'option', function (e) { ... }

You an use

$('#programDetailTablebody').on( 'change', "select[name='activityTypeInput']", function (e) { ... }

answered Nov 1, 2020 at 2:21

Yusuf T.

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