how to serialize object in c#

 var contactListObj = new ContactList
            {
                Name = emailServicesListDto.Name,
                Status = emailServicesListDto.Status.ToString(),
                CreatedDate = DateTime.UtcNow.ToString(CultureInfo.InvariantCulture),
                ModifiedDate = DateTime.UtcNow.ToString(CultureInfo.InvariantCulture),
                ContactCount = 0
            };
            var contactList = JsonConvert.SerializeObject(contactListObj);//new JavaScriptSerializer().Serialize(contactList);