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JSON data from server side is not displaying

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Hi,
I'm converting the data from SQL to JSON at server side using JavaScriptSerializer and I'm getting Valid JSON data as shown below, but it's displaying in datatables.

{
  "d": "[{\"Name\":\"02.F_Inter_Account_Transfer Load\",\"Step_name\":\"Validation Check_Dependencies to complete\",\"step_id\":1,\"Start_DateTime\":\"\\/Date(1646094250000)\\/\",\"End_DateTime\":\"\\/Date(1646094254997)\\/\",\"last_run_duration\":\"00:00:05\"},{\"Name\":\"02.F_Inter_Account_Transfer Load\",\"Step_name\":\"Extract_BAJX0PF\",\"step_id\":2,\"Start_DateTime\":\"\\/Date(1646094255000)\\/\",\"End_DateTime\":\"\\/Date(1646094303997)\\/\",\"last_run_duration\":\"00:00:49\"}]"
}

My ASPX code:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="test.aspx.cs" Inherits="DataTablesAccordion.test" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.11.4/css/jquery.dataTables.min.css" />
    <script type="text/javascript" src="https://code.jquery.com/jquery-3.5.1.js"></script>
    <script type="text/javascript" src="https://cdn.datatables.net/1.11.4/js/jquery.dataTables.min.js"></script>
    <script type="text/javascript">
        /* Formatting function for row details - modify as you need */
        function format(d) {
            // `d` is the original data object for the row
            return '<table cellpadding="5" cellspacing="0" border="0" style="padding-left:50px;">' +
                '<tr>' +
                '<td>Full name:</td>' +
                '<td>' + d.Start_DateTime + '</td>' +
                '</tr>' +
                '<tr>' +
                '<td>Extension number:</td>' +
                '<td>' + d.End_DateTime + '</td>' +
                '</tr>' +              
                '</table>';
        }
        $(document).ready(function () {
            var table = $('#example').DataTable({                
                "processing": true,
                "serverSide": true,               
                "columns": [
                    {
                        "className": 'dt-control',
                        "orderable": false,
                        "defaultContent": ''
                    },
                    { "data": "Name" },
                    { "data": "Step_name" },
                    { "data": "step_id" },
                    { "data": "last_run_duration" }
                ],
                ajax: {
                    url: "test.aspx/GetData",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                },
                "order": [[1, 'asc']]
            });

            // Add event listener for opening and closing details
            $('#example tbody').on('click', 'td.dt-control', function () {
                var tr = $(this).closest('tr');
                var row = table.row(tr);

                if (row.child.isShown()) {
                    // This row is already open - close it
                    row.child.hide();
                    tr.removeClass('shown');
                }
                else {
                    // Open this row
                    row.child(format(row.data())).show();
                    tr.addClass('shown');
                }
            });
        });
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <div class="demo-html">
            <table id="example" class="display" style="width: 100%">
                <thead>
                    <tr>
                        <th></th>
                        <th>Name</th>
                        <th>Step_name</th>
                        <th>step_id</th>
                        <th>last_run_duration</th>
                    </tr>
                </thead>                
            </table>
        </div>
    </form>
</body>
</html>

Edited by Kevin: Syntax highlighting. Details on how to highlight code using markdown can be found in this guide


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