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");
rea