A a=new A();a.Name="Elain00";a.Hobby="eat eat";string jsonStr=JsonConvert.SerializeObject(a);

string JsonStr=‘"{\‘Name\‘:\‘Elaine00\‘,\‘Hobby\‘:\‘eat eat\‘}";A a=JsonConvert.DeserializeObject<A>(JsonStr);

 IsoDateTimeConverter timeFormat = new IsoDateTimeConverter();                    timeFormat.DateTimeFormat = "yyyy-MM-dd HH:mm:ss";                    Response.Write(JsonConvert.SerializeObject(bll.GetModelList(strWhere), Newtonsoft.Json.Formatting.Indented, timeFormat));

public static class NewtonJSONHelper    {        public static string SerializeObject(this object obj)        {            return JsonConvert.SerializeObject(obj, Formatting.Indented, new JsonSerializerSettings{                ReferenceLoopHandling = ReferenceLoopHandling.Ignore});        }        public static T DeserializeObject<T>(this string data)        {            return JsonConvert.DeserializeObject<T>(data, new JsonSerializerSettings            {                ReferenceLoopHandling = ReferenceLoopHandling.Ignore            });        }    }

public class LogEntry{  public string Details { get; set; }  public DateTime LogDate { get; set; }}public void WriteJsonDates(){  LogEntry entry = new LogEntry  {    LogDate = new DateTime(2009, 2, 15, 0, 0, 0, DateTimeKind.Utc),    Details = "Application started."  };  // default as of Json.NET 4.5  string isoJson = JsonConvert.SerializeObject(entry);  // {"Details":"Application started.","LogDate":"2009-02-15T00:00:00Z"}  JsonSerializerSettings microsoftDateFormatSettings = new JsonSerializerSettings  {    DateFormatHandling = DateFormatHandling.MicrosoftDateFormat  };  string microsoftJson = JsonConvert.SerializeObject(entry, microsoftDateFormatSettings);  // {"Details":"Application started.","LogDate":"\/Date(1234656000000)\/"}  string javascriptJson = JsonConvert.SerializeObject(entry, new JavaScriptDateTimeConverter());  // {"Details":"Application started.","LogDate":new Date(1234656000000)}}