How to dynamically read no. of selected rows in jquery data table

Biswajitrox

How to dynamically read no. of selected rows in jquery data table .e.g- when a table appear on a screen with some check-box selected for each row (after some click event) ,then it should display below that 5 row selected to add.
http://ctrlv.in/608821 like this example here

neurofunk

example column with checkboxes:

"columns" : [
            {
                "data" : row[0],
                "render" : function(data , type , row){
                    return '<input class="ch" type="checkbox" value='+data+' />'
                }

            }
],

and script which counts selected checkboxes

$(document).ready(function (){ 
    $('body').on('change' , '.ch' , function(){
        var checked = 0
        $('.ch:checked').each(function (){
            checked = checked +1
            console.log(checked)

                  $('.info').text(checked + " rows are selected")

        })
    })
})