Serialize/ Deserialize JSON

static string SerializeJSON(object graph) {
            using(MemoryStream ms = new MemoryStream()) {
                new DataContractJsonSerializer(graph.GetType()).WriteObject(ms,graph);
                ms.Position = 0;
                using(StreamReader reader = new StreamReader(ms)) {
                    return reader.ReadToEnd();
                }
            }
        }

        static T DeSerializeJSON<T>(string json) {
            using(MemoryStream ms = new MemoryStream(Encoding.Default.GetBytes(json))) {
                ms.Position = 0;
                return (T)new DataContractJsonSerializer(typeof(T)).ReadObject(ms);
            }
        }