Use SQL data for flot chart with C# and ASP

我是flot charts的新手，与其说我是C#程序员，不如说我是SQL程序员。我正试图用条形图来反映每月的销售额。我似乎无法将数据输入图表。我一直在寻找一个直接的答案，让它发挥作用，但4天后却没有运气。以下是存储过程返回的内容：

MonthID SoldCount   MonthName
4        101         Apr
8        118         Aug
2        74          Feb
1        74          Jan
7        113         Jul
6        126         Jun
3        114         Mar
5        129         May
9         47         Sep

这是后面的代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.Text;
using System.Configuration;
using SkywebReporter.Classes;
namespace SkywebReporter
{
    public partial class DefaultObject : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {         
        }
        string conn = ConfigurationManager.ConnectionStrings["sqlConn"].ConnectionString;
        [System.Web.Services.WebMethod]//public static web method in code behind
        public static List<PNMACsales> GetData() //int StartRowindex, 
        {
            List<PNMACsales> myResult = new List<PNMACsales>();
            using (SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["sqlConn"].ConnectionString))
            {
                //string sqlString = "SelectbyYearTotalProductAssign";
                string sqlString = "PNMAC.procReportSalesCounts";
                using (SqlCommand cmd = new SqlCommand(sqlString, conn))
                {
                    cmd.CommandType = System.Data.CommandType.StoredProcedure;
                    conn.Open();
                    SqlDataReader rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                    while (rdr.Read())
                    {
                        PNMACsales obj = new PNMACsales();
                        obj.SoldCount = Convert.ToInt32(rdr["SoldCount"]);
                        obj.MonthName = rdr["MonthName"].ToString();
                        myResult.Add(obj);
                    }
                    conn.Close();
                }
            } 
            return myResult;             
        }      
    }
}

这是我的JS文件Dashboard.JS

function DrowChart() {
    jQuery("#placeholder").html('');
    var list12 = [];
    jQuery.ajax({
        type: "POST",
        url: "DefaultObject.aspx/GetData",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        async: false,
        data: "{}",
        success: function (data) {
            jQuery.map(data.d, function (item) {
                var list = [];
                list.push("'" + item.MonthName + "'");
                list.push(item.SoldCount);
                list12.push(list);
            });
            var plot1 = jQuery.jqplot('chart1', [list12],
                                     );
        }
    });
}