Refresh jQuery datatable table

var table =  $('#product_table').DataTable({
    "bProcessing": true,
    "serverSide": true,
    responsive: true,
    "ajax": {
        url: get_base_url + "product_table", // json datasource
        type: "post", // type of method  ,GET/POST/DELETE
        error: function () {
            $("#employee_grid_processing").css("display", "none");
        }
    }
});

//call this funtion 
$(document).on('click', '#view_product', function () {
  table.ajax.reload();
});

I Know this is an old post, but I've just investigated about the problem and I find the easiest way to solve it in DataTable man pages: https://datatables.net/reference/api/ajax.reload%28%29 All you need to call table.ajax.reload();

Try this

Initially you initialized the table so first clear that table

$('#myTable').dataTable().fnDestroy();

Then initialize again after ajax success

$('#myTable').dataTable();

Like this

$("#dropdownlist").on("change", function () {
        $("tbody").empty();
            $.ajax({
                type: "POST",
                url: "@Url.Action("ActionHere", "Controller")",
                dataType: "json",
                success: function (data) {
                    $.each(data, function (key, item) {
                        $("tbody").append("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
                    });
                }
            })
       $('#myTable').dataTable().fnDestroy();
       $('#myTable').dataTable({ // Cannot initialize it again error
                "aoColumns": [
                  { "bSortable": false },
                  null, null, null, null
                ]
            });
        });

DEMO