System.Runtime.Serialization.DataContractSerializer.WriteEndObject C# (CSharp) Method

        public override void WriteEndObject(System.Xml.XmlDictionaryWriter writer) { }
        public override void WriteEndObject(System.Xml.XmlWriter writer) { }

        public void CompareXml()
        {
            var auditConfiguration = AuditConfiguration.Default;

            auditConfiguration.IncludeRelationships = true;
            auditConfiguration.LoadRelationships = true;
            auditConfiguration.DefaultAuditable = true;

            // customize the audit for Task entity
            //auditConfiguration.IsAuditable<Task>()
            //  .NotAudited(t => t.TaskExtended)
            //  .FormatWith(t => t.Status, v => FormatStatus(v));

            // set name as the display member when status is a foreign key
            auditConfiguration.IsAuditable<Status>()
              .DisplayMember(t => t.Name);

            var db = new TrackerContext();
            var audit = db.BeginAudit();

            var user = db.Users.Find(1);
            user.Comment = "Testing: " + DateTime.Now.Ticks;

            var task = new Task()
            {
                AssignedId = 1,
                CreatedId = 1,
                StatusId = 1,
                PriorityId = 2,
                Summary = "Summary: " + DateTime.Now.Ticks
            };
            db.Tasks.Add(task);

            var task2 = db.Tasks.Find(1);
            task2.PriorityId = 2;
            task2.StatusId = 2;
            task2.Summary = "Summary: " + DateTime.Now.Ticks;

            var log = audit.CreateLog();
            Assert.IsNotNull(log);

            string xml = log.ToXml();
            Assert.IsNotNull(xml);
            File.WriteAllText(@"test.xml.xml", xml);

            foreach (var property in log.Entities.SelectMany(e => e.Properties))
            {
                Assert.AreNotEqual(property.Current, "{error}");
                Assert.AreNotEqual(property.Original, "{error}");
            }

            var builder = new StringBuilder();
            var settings = new XmlWriterSettings { Indent = true, OmitXmlDeclaration = true };
            var writer = XmlWriter.Create(builder, settings);

            var serializer = new DataContractSerializer(typeof(AuditLog));
            serializer.WriteStartObject(writer, log);
            writer.WriteAttributeString("xmlns", "xsd", null, "http://www.w3.org/2001/XMLSchema");
            serializer.WriteObjectContent(writer, log);
            serializer.WriteEndObject(writer);

            writer.Flush();

            string xml2 = builder.ToString();
            File.WriteAllText(@"test.data.xml", xml2);

            string json = JsonConvert.SerializeObject(log, Newtonsoft.Json.Formatting.Indented, new StringEnumConverter());
            File.WriteAllText(@"test.data.json", json);


        }