jQuery datatable show hide columns

Include the following HTML just above the datatable markup
<div style="padding: 5px; padding-left: 0px">
    <b>Show/Hide Column : </b>
    <a class="showHideColumn" data-columnindex="0">Id</a> -
    <a class="showHideColumn" data-columnindex="1">First Name</a> -
    <a class="showHideColumn" data-columnindex="2">Last Name</a> -
    <a class="showHideColumn" data-columnindex="3">Gender</a> -
    <a class="showHideColumn" data-columnindex="4">Job Title</a> -
    <a class="showHideColumn" data-columnindex="5">Web Site</a> -
    <a class="showHideColumn" data-columnindex="6">Salary</a> -
    <a class="showHideColumn" data-columnindex="7">Hire Date</a>
</div>

Include the following style section, in the head section of the page
<style>
    .showHideColumn {
        cursor: pointer;
        color: blue;
    }
</style>

Finally, include the following code block in the success callback function
$('.showHideColumn').on('click', function () {
    var tableColumn = datatableInstance.column($(this).attr('data-columnindex'));
    tableColumn.visible(!tableColumn.visible());
});

Complete Example :
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <script src="jquery-1.11.2.js"></script>
    <link rel="stylesheet" type="text/css"
        href="//cdn.datatables.net/1.10.7/css/jquery.dataTables.min.css" />
    <script src="//cdn.datatables.net/1.10.7/js/jquery.dataTables.min.js">
    </script>
    <script type="text/javascript">
        $(document).ready(function () {
            $.ajax({
                url: 'EmployeeService.asmx/GetEmployees',
                method: 'post',
                dataType: 'json',
                success: function (data) {
                    var datatableInstance = $('#datatable').DataTable({
                        paging: true,
                        sort: true,
                        searching: true,
                        data: data,
                        columns: [
                            { 'data': 'Id' },
                            { 'data': 'FirstName' },
                            { 'data': 'LastName' },
                            { 'data': 'Gender' },
                            { 'data': 'JobTitle' },
                            {
                                'data': 'WebSite',
                                'sortable': false,
                                'searchable': true,
                                'render': function (webSite) {
                                    if (!webSite) {
                                        return 'N/A';
                                    }
                                    else {
                                        return '<a href=' + webSite + '>'
                                            + webSite.substr(0, 10) + '...' + '</a>';
                                    }
                                }
                            },
                            {
                                'data': 'Salary',
                                'render': function (salary) {
                                    return "$" + salary;
                                }
                            },
                            {
                                'data': 'HireDate',
                                'render': function (jsonDate) {
                                    var date = new Date(parseInt(jsonDate.substr(6)));
                                    var month = date.getMonth() + 1;
                                    return month + "/" + date.getDate() + "/" + date.getFullYear();
                                }
                            }
                        ]
                    });

                    $('#datatable tfoot th').each(function () {
                        var title = $('#datatable thead th').eq($(this).index()).text();
                        $(this).html('<input type="text" placeholder="Search ' + title + '" />');
                    });

                    datatableInstance.columns().every(function () {
                        var dataTableColumn = this;

                        $(this.footer()).find('input').on('keyup change', function () {
                            dataTableColumn.search(this.value).draw();
                        });
                    });

                    $('.showHideColumn').on('click', function (e) {
                        e.preventDefault();

                        var tableColumn =
                            datatableInstance.column($(this).attr('data-columnindex'));
                        tableColumn.visible(!tableColumn.visible());
                    });
                }
            });
        });
    </script>
    <style>
        .showHideColumn {
            cursor: pointer;
            color: blue;
        }
    </style>
</head>
<body style="font-family: Arial">
    <form id="form1" runat="server">
        <div style="padding: 5px; padding-left: 0px">
            <b>Show/Hide Column : </b>
            <a class="showHideColumn" data-columnindex="0">Id</a> -
            <a class="showHideColumn" data-columnindex="1">First Name</a> -
            <a class="showHideColumn" data-columnindex="2">Last Name</a> -
            <a class="showHideColumn" data-columnindex="3">Gender</a> -
            <a class="showHideColumn" data-columnindex="4">Job Title</a> -
            <a class="showHideColumn" data-columnindex="5">Web Site</a> -
            <a class="showHideColumn" data-columnindex="6">Salary</a> -
            <a class="showHideColumn" data-columnindex="7">Hire Date</a>
        </div>
        <div style="width: 1700px; border: 1px solid black; padding: 3px">
            <table id="datatable">
                <thead>
                    <tr>
                        <th>Id</th>
                        <th>First Name</th>
                        <th>Last Name</th>
                        <th>Gender</th>
                        <th>Job Title</th>
                        <th>Web Site</th>
                        <th>Salary</th>
                        <th>Hire Date</th>
                    </tr>
                </thead>
                <tfoot>
                    <tr>
                        <th>Id</th>
                        <th>First Name</th>
                        <th>Last Name</th>
                        <th>Gender</th>
                        <th>Job Title</th>
                        <th>Web Site</th>
                        <th>Salary</th>
                        <th>Hire Date</th>
                    </tr>
                </tfoot>
            </table>
        </div>
    </form>
</body>
</html>

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