序列化及反序列化Dictionary

#region 序列化及反序列化对象
[Serializable]
public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, IXmlSerializable
{

public SerializableDictionary() { }

public void WriteXml(XmlWriter write)
{
XmlSerializer KeySerializer = new XmlSerializer(typeof(TKey));
XmlSerializer ValueSerializer = new XmlSerializer(typeof(TValue));

foreach (KeyValuePair<TKey, TValue> kv in this)
{
write.WriteStartElement("SerializableDictionary");
write.WriteStartElement("key");
KeySerializer.Serialize(write, kv.Key);
write.WriteEndElement();
write.WriteStartElement("value");
ValueSerializer.Serialize(write, kv.Value);
write.WriteEndElement();
write.WriteEndElement();
}

}
public void ReadXml(XmlReader reader)
{
reader.Read();
XmlSerializer KeySerializer = new XmlSerializer(typeof(TKey));
XmlSerializer ValueSerializer = new XmlSerializer(typeof(TValue));

while (reader.NodeType != XmlNodeType.EndElement)
{
reader.ReadStartElement("SerializableDictionary");
reader.ReadStartElement("key");
TKey tk = (TKey)KeySerializer.Deserialize(reader);
reader.ReadEndElement();
reader.ReadStartElement("value");
TValue vl = (TValue)ValueSerializer.Deserialize(reader);
reader.ReadEndElement();
reader.ReadEndElement();
this.Add(tk, vl);
reader.MoveToContent();

}
reader.ReadEndElement();

}
public XmlSchema GetSchema()
{
return null;
}
}
#endregion