Display CanvasJs Pie Charts using SQL Server

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Header File
      <script src="jquery-1.7.1.js" type="text/javascript"></script>
      <script src="canvasjs.min.js" type="text/javascript"></script>

Aspx Page:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="CanvasjsChart.aspx.cs" Inherits="BloggerCont.CanvasjsChart" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
   <head id="Head1" runat="server">
      <title></title>
      <script src="jquery-1.7.1.js" type="text/javascript"></script>
      <script src="canvasjs.min.js" type="text/javascript"></script>
      <script type="text/javascript">
          $(document).ready(function () {
              Disp();
          });


          function Disp() {
              var dataPts = [];
              var var1;
              var var2;
              $.ajax({
                  cache: false,
                  async: false,
                  type: "POST",
                  dataType: "Json",
                  contentType: "application/json; charset=utf-8",
                  url: "CanvasjsChart.aspx/GetAgeCharts",
                  data: {},
                  success: function (data) {

                      var len = data.d.length;

                      for (var i = 0; i < len; i++) {

                          dataPts.push({
                              label: data.d[i].Name,
                              y: parseFloat(data.d[i].Age)
                          });
                      }

                      var chart = new CanvasJS.Chart("divchart",
                   {
                       title: {
                           text: "Canvas js pie chart"
                       },
                       data: [
                    {
                        type: "pie",
                        dataPoints: dataPts
                    }]
                   });
                      chart.render();
                  },
                  error: function (result) {
                      alert(result);
                  }
              });
          }
      </script>
   </head>
   <body>
      <form id="form1" runat="server">
         <div id="divchart"></div>
      </form>
   </body>
</html>


CS Page

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Services;
using System.Data.SqlClient;
using System.Configuration;
using System.Data;

namespace BloggerCont
{
    public partial class CanvasjsChart : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        public class StdAge
        {
            public string Name;
            public int Age;
        }

        [WebMethod]
        public static object GetAgeCharts()
        {
            SqlConnection cn = new SqlConnection(ConfigurationManager.ConnectionStrings["blogger"].ToString());
            List<StdAge> obj = new List<StdAge>();
            cn.Open();

            DataTable dt = new DataTable();

            SqlCommand cmd = new SqlCommand();
            SqlDataAdapter da = new SqlDataAdapter("select * from tbl_CanvasAge", cn);
            da.Fill(dt);
            cn.Close();

            foreach (DataRow dr in dt.Rows)
            {
                StdAge Std = new StdAge();

                Std.Name = Convert.ToString(dr[1].ToString());
                Std.Age = Convert.ToInt32(dr[2].ToString());

                obj.Add(Std);
            }
            return obj.ToArray();
        }

    }
}



DataBase:


Charts:

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