Q:

jquery - Click event not working for dynamically created button

My requirement is to create number of buttons equal to the json array count. I was successful in creating buttons dynamically in jquery. But the method in .ready function of jquery is not called for the click action. I have tried searching in SO. Found few solutions but nothing worked for me. I am very new to jquery. Please help...
my code:
jQuery:
$(document).ready(function()
{
    currentQuestionNo = 0;
    var questionsArray;
    $.getJSON('http://localhost/Sample/JsonCreation.php', function(data)
    {   
        questionsArray = data;
        variable = 1;
            //CREATE QUESTION BUTTONS DYNAMICALLY ** NOT WORKING
        for (var question in questionsArray)
        {
            var button = $("<input>").attr("type", "button").attr("id", "questionButton").val(variable);

            $('body').append(button);

                        //Tried using .next here - but it dint work...
            //$('body').append('<button id="questionButton">' + variable + '</button>');
            variable++;
        }
        displayQuestionJS(questionsArray[currentQuestionNo], document);
    });

    $("button").click(function()
    {

        if ($(this).attr('id') == "nextQuestion")
        {
            currentQuestionNo = ++currentQuestionNo;
        }
        else if ($(this).attr('id') == "previousQuestion")
        {
            currentQuestionNo = --currentQuestionNo;
        }

        displayQuestionJS(questionsArray[currentQuestionNo], document);

    });

function displayQuestionJS(currentQuestion, document) 
{
    document.getElementById('questionNumber').innerText  = currentQuestion.questionNumber;
    document.getElementById('questionDescription').innerText  = currentQuestion.quesDesc;
    $('label[for=optionA]').html(currentQuestion.optionA);
    $('label[for=optionB]').html(currentQuestion.optionB);
    $('label[for=optionC]').html(currentQuestion.optionC);
}

HTML content
<form method="post" name="formRadio">

<label id="questionNumber"></label>. &nbsp;
<label id="questionDescription"></label>   <br />
<input type="radio" id="optionA"> </input> <label for="optionA"></label> <br />
<input type="radio" id="optionB"> </input> <label for="optionB"></label> <br />
<input type="radio" id="optionC"> </input> <label for="optionC"></label> <br />

<button id="previousQuestion">Previous Question</button>
<button id="nextQuestion">Next Question</button>

<br />
<br />

<input type="submit" id="submitButton" name="submitTest" value="Submit"></input>
</form>

EDIT -- Sample .on Method code - Separate file: WORKING - THANKS A LOT
<script>
$(document).ready(function()
{
    $("button").click(function()
    {
        var button = '<input type="button" id="button2" value="dynamic button">';
        $('body').append(button);
    });
});

$(document).on('click','#button2', function()
{
    alert("Dynamic button action");
});

</script>
</head>

<body>

<button id="button">Static Button</button>

</body>

A:

You create buttons dynamically because of that you need to call them with .live() method if you use jquery 1.7
but this method is deprecated (you can see the list of all deprecated method here) in newer version. if you want to use jquery 1.10 or above you need to call your buttons in this way:
$(document).on('click', 'selector', function(){ 
     // Your Code
});

For Example
If your html is something like this
<div id="btn-list">
    <div class="btn12">MyButton</div>
</div>

You can write your jquery like this
$(document).on('click', '#btn-list .btn12', function(){ 
     // Your Code
});

A:

My guess is that the buttons you created are not yet on the page by the time you bind the button. Either bind each button in the $.getJSON function, or use a dynamic binding method like:
$('body').on('click', 'button', function() {
    ...
});

Note you probably don't want to do this on the 'body' tag, but instead wrap the buttons in another div or something and call on on it.
jQuery On Method

