$('#mileagetable').dataTable(
        {
            "aaData": aaData,
            "iDisplayLength": 5, "lengthMenu": [[5, 10, 25, 50, -1], [5, 10, 25, 50, "All"]],
            "bDestroy": true,
            "bSort": true,
            "aoColumns": [

                { "mDataProp": "record", "sWidth": "10%" },
                {
                    "mData": "task1",
                    "mRender": function (data, type, full) {
                        return '<i class="fa fa-link"></i> <a href="#' + data + '" target="_blank">' + data + '</a>';
                    },
                    "mData": "task2",
                    "mRender": function (data, type, full) {
                        return '<i class="fa fa-link"></i> <a href="#' + data + '" target="_blank">' + data + '</a>';
                    }
                }
            ]
    });