Jsonデータ変換

using System.Web.Script.Serialization;//逆シーケンス化Collections;using System.Runtime.Serialization.Json;using Newtonsoft.Json;using Newtonsoft.Json.Converters;using System.IO;using System.Collections.Generic;
以上のネーミングスペースの導入

        /// <summary>
        /// JSON    
        /// </summary>
        public static T JsonDeserialize<T>(string jsonString)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));
            T obj = (T)ser.ReadObject(ms);
            return obj;
        }

        public class checkinfo
        {
            public string code { get; set; }
            public string checkContent { get; set; }
            public string checkResult { get; set; }
            public string remark { get; set; }
        }

        public class checkinfolist
        {
            public List<checkinfo> list { get; set; }
        }

//    
 checkinfolist checkinfomodel = JsonDeserialize<checkinfolist>(info);

                      //    json  
　　　　　　　　　　　　    string sysIds = "";//  id
                        string txtDevicename = "";
                        string txtDevicemodel = "";
                        string txtcheckPosition = "";
                        if (context.Request.QueryString["sysIds"] != null) { sysIds = context.Request.QueryString["sysIds"]; }
                        if (context.Request.QueryString["txtDevicename"] != null) { txtDevicename = context.Request.QueryString["txtDevicename"]; }
                        if (context.Request.QueryString["txtDevicemodel"] != null) { txtDevicemodel = context.Request.QueryString["txtDevicemodel"]; }
                        if (context.Request.QueryString["txtcheckPosition"] != null) { txtcheckPosition = context.Request.QueryString["txtcheckPosition"]; }
                        DataSet emps5 = emp2.GetDeviceCheckList(sysIds, txtDevicename, txtDevicemodel, txtcheckPosition, intPageSize, intCurrentPage);
                        ReturnValue = "{\"total\":" + emps5.Tables[1].Rows[0][0].ToString() + ", \"rows\":";
                        ReturnValue += JsonConvert.SerializeObject(emps5.Tables[0], new DataTableConverter());
                        ReturnValue += "}";