参考地址:http://weblogs.asp.net/pwelter34/archive/2006/05/03/444961.aspx
简述:默认情况下,Dictionary是不支持XML序列化的,为了达到这个目的,我们需要自定义一个类型来做
For some reason, the generic Dictionary in .net 2.0 is not XML serializable.
The following code snippet is a xml serializable generic dictionary.
The dictionary is serialzable by implementing the IXmlSerializable interface.
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;
[XmlRoot("dictionary")]
public class SerializableDictionary
: Dictionary
, IXmlSerializable
{
#region IXmlSerializable Members
public System.Xml.Schema.XmlSchema GetSchema()
{
return
null;
}
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();
}
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
}
Update: