c# 支持XML序列化的泛型 Dictionary

/// <summary> /// 支持XML序列化的泛型 Dictionary /// </summary> /// <typeparam name="TKey"></typeparam> /// <typeparam name="TValue"></typeparam> [XmlRoot("SerializableDictionary")] public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, IXmlSerializable { #region 构造函数 public SerializableDictionary() : base() { } public SerializableDictionary(IDictionary<TKey, TValue> dictionary) : base(dictionary) { } public SerializableDictionary(IEqualityComparer<TKey> comparer) : base(comparer) { } public SerializableDictionary(int capacity) : base(capacity) { } public SerializableDictionary(int capacity, IEqualityComparer<TKey> comparer) : base(capacity, comparer) { } protected SerializableDictionary(SerializationInfo info, StreamingContext context) : base(info, context) { } #endregion #region IXmlSerializable Members public System.Xml.Schema.XmlSchema GetSchema() { return null; } /// <summary> /// 从对象的 XML 表示形式生成该对象 /// </summary> /// <param name="reader"></param> public void ReadXml(System.Xml.XmlReader reader) { XmlSerializer keySerializer = new XmlSerializer(typeof(TKey)); XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue)); bool wasEmpty = reader.IsEmptyElement; reader.Read(); if (wasEmpty) return; while (reader.NodeType != System.Xml.XmlNodeType.EndElement) { reader.ReadStartElement("item"); reader.ReadStartElement("key"); TKey key = (TKey)keySerializer.Deserialize(reader); reader.ReadEndElement(); reader.ReadStartElement("value"); TValue value = (TValue)valueSerializer.Deserialize(reader); reader.ReadEndElement(); this.Add(key, value); reader.ReadEndElement(); reader.MoveToContent(); } reader.ReadEndElement(); } /**/ /// <summary> /// 将对象转换为其 XML 表示形式 /// </summary> /// <param name="writer"></param> public void WriteXml(System.Xml.XmlWriter writer) { XmlSerializer keySerializer = new XmlSerializer(typeof(TKey)); XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue)); foreach (TKey key in this.Keys) { writer.WriteStartElement("item"); writer.WriteStartElement("key"); keySerializer.Serialize(writer, key); writer.WriteEndElement(); writer.WriteStartElement("value"); TValue value = this[key]; valueSerializer.Serialize(writer, value); writer.WriteEndElement(); writer.WriteEndElement(); } } #endregion }