關於DataTable序列化的事兒

今天寫了一個小demo，從數據庫中讀取到了dataTable，想序列化成json字符串，然后傳到前端，進行頁面展示，其實很簡單的一個步驟，誰知道它出錯了！！！

出錯的原因是：序列化類型為XX的對象時檢測到循環引用，然后百度了一下，有好多解決方案，我沒有一一去試，寫這個主要記錄一下我找到的解決的辦法。

鏈接：http://xuzhihong1987.blog.163.com/blog/static/26731587201101913722238/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Web.Script.Serialization;

namespace Common
{
    public class ConventDataTableToJson
    {
        /// <summary>

        /// 序列化方法（帶分頁）

        /// </summary>

        /// <param name="dt"></param>

        /// <returns></returns>

        public static string Serialize(DataTable dt)
        {

            List<Dictionary<string, object>> list = new List<Dictionary<string, object>>();

            foreach (DataRow dr in dt.Rows)
            {

                Dictionary<string, object> result = new Dictionary<string, object>();

                foreach (DataColumn dc in dt.Columns)
                {

                    result.Add(dc.ColumnName, dr[dc].ToString());

                }

                list.Add(result);

            }

            int count = 0;

            try
            {

                count = Convert.ToInt32(dt.TableName);

            }

            catch (System.Exception ex)
            {

                count = dt.Rows.Count;

            }

            string strReturn = "";

            if (count == 0)
            {

                strReturn = "{\"totalCount\":0,\"data\":[]}";

            }

            else
            {

                strReturn = ConventToJson(list, count);

            }

            return strReturn;

        }



        /// <summary>

        /// 轉換為JSON對象

        /// </summary>

        /// <returns></returns>

        public static string ConventToJson<T>(List<T> list, int count)
        {

            JavaScriptSerializer serializer = new JavaScriptSerializer();

            string strJson = serializer.Serialize(list);

            strJson = strJson.Substring(1);

            strJson = strJson.Insert(0, "{totalCount:" + count + ",data:[");

            strJson += "}";



            return strJson;

        }



        /// <summary>

        /// 不需要分頁

        /// </summary>

        /// <param name="dt"></param>

        /// <param name="flag">false</param>

        /// <returns></returns>

        public static string Serialize(DataTable dt, bool flag)
        {

            JavaScriptSerializer serializer = new JavaScriptSerializer();

            List<Dictionary<string, object>> list = new List<Dictionary<string, object>>();

            foreach (DataRow dr in dt.Rows)
            {

                Dictionary<string, object> result = new Dictionary<string, object>();

                foreach (DataColumn dc in dt.Columns)
                {

                    result.Add(dc.ColumnName, dr[dc].ToString());

                }

                list.Add(result);

            }

            return serializer.Serialize(list); ;

        }
    }
}