Below code snippet explains how to get all checked or selected HTML input checkbox based on their class attribute using jQuery.
<input type="checkbox" id="Checkbox1" class = "chk" value = "1" />
<input type="checkbox" id="Checkbox2" class = "chk" value = "2" />
<input type="checkbox" id="Checkbox3" class = "chk" value = "3" />
<input type="checkbox" id="Checkbox4" class = "chk" value = "4" />
<input type="button" id="demo" value = "Demo" />
<script type = "text/javascript" src = "http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.6.1.min.js"></script>
<script type="text/javascript">
$("#demo").live("click", function () {
$("input:checkbox[class=chk]:checked").each(function () {
alert("Id: " + $(this).attr("id") + " Value: " + $(this).val());
});
});
</script>
Explanation:
In the above example a click event handler has been assigned to the HTML input button. When the button is clicked, jQuery finds all the checkboxes with class name “chk” and that are checked using input:checkbox[class=chk]:checked selector and then the Id and value attribute of the all HTML input checkboxes are displayed in alert using jQuery.