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Is it possible to serialize a .Net Dictionary<Key,Value> into JSON with DataContractJsonSerializer that is of the format: { key0:value0, key1:value1, ... } I use Dictionary <K,V>, because there is not predefined structure of the inputs. I'm interesting just for DataContractJsonSerializer result! I've already found a "Surrogate" example, but there is an additional "data" in the output, and if the dictionary <K, String> is, the escaping is false too. I've found the solution, what a needed! First of all, a serializable "dictionary" class: (Of course, this sample works just in one way, but I dont't need deserialization) [Serializable] public class MyJsonDictionary<K, V> : ISerializable { Dictionary<K, V> dict = new Dictionary<K, V>(); public MyJsonDictionary() { } protected MyJsonDictionary( SerializationInfo info, StreamingContext context ) { throw new NotImplementedException(); } public void GetObjectData( SerializationInfo info, StreamingContext context ) { foreach( K key in dict.Keys ) { info.AddValue( key.ToString(), dict[ key ] ); } } public void Add( K key, V value ) { dict.Add( key, value ); } public V this[ K index ] { set { dict[ index ] = value; } get { return dict[ index ]; } } } Usage: public class MainClass { public static String Serialize( Object data ) { var serializer = new DataContractJsonSerializer( data.GetType() ); var ms = new MemoryStream(); serializer.WriteObject( ms, data ); return Encoding.UTF8.GetString( ms.ToArray() ); } public static void Main() { MyJsonDictionary<String, Object> result = new MyJsonDictionary<String, Object>(); result["foo"] = "bar"; result["Name"] = "John Doe

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