//public class ThreadSafeDictionary<TKey, TValue> : IDictionary<TKey, TValue>, ICloneable
    [Serializable]
    public class ThreadSafeDictionary<TKey, TValue> : Dictionary<TKey, TValue>, ICloneable
    {
        public object Clone()
        {
            BinaryFormatter Formatter = new BinaryFormatter(null, new StreamingContext(StreamingContextStates.Clone));
            MemoryStream stream = new MemoryStream();
            Formatter.Serialize(stream, this);
            stream.Position = 0;
            object clonedObj = Formatter.Deserialize(stream);
            stream.Close();
            return clonedObj;
        }

        public ThreadSafeDictionary() { }
        //父類實現了ISerializable介面的，子類也必須有序列化建構函式，否則反序列化時會出錯。
        protected ThreadSafeDictionary(SerializationInfo info, StreamingContext context)
            : base(info, context)
        {
            //Value = info.GetBoolean("Test_Value");
        }

        public override void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            base.GetObjectData(info, context);
            //info.AddValue("Test_Value", Value);
        }

        //public bool Value { get; set; }        
    }
 

這時，才可以序列化和反序列化這個Dictionary.