C# xml序列化与反序列化 特性的使用

以下为将被序列化的类Entity：

[XmlRoot("Root")]
public class Entity
{
[XmlAttribute(AttributeName = "Attr1")]
public string Attribute1;

[XmlElement("SecondLevel")]
public SecondLevel SecondLevel;

public override string ToString()
{
return Serializer.Serialize(this);
}
}

public class SecondLevel
{
[XmlElement("ThirdLevel")]
public List<ThirdLevel> ThirdLevel;
}

public class ThirdLevel
{
[XmlAttribute(AttributeName = "Attribute1")]
public string Attribute1;

[XmlAttribute(AttributeName = "Attribute2")]
public string Attribute2;

[XmlElement("Ele1")]
public Element Ele1;
}

public class Element
{
[XmlAttribute(AttributeName = "Attr1")]
public string Attribute1;

[XmlText]
public string Value;
}

以下为Entity类一实例序列化后的xml文件：

<?xml version="1.0"?>
<Root Attr1="attribute1">
<SecondLevel>
<ThirdLevel Attribute1="at1" Attribute2="at2">
<Ele1 Attr1="at1">v</Ele1>
</ThirdLevel>
<ThirdLevel Attribute1="att1" Attribute2="att2">
<Ele1 Attr1="att1">va</Ele1>
</ThirdLevel>
<ThirdLevel Attribute1="attr1" Attribute2="attr2">
<Ele1 Attr1="attr1">val</Ele1>
</ThirdLevel>
</SecondLevel>
</Root>

值得一提的是，在实际运用中，自定义命名空间[xmlns:......]的方法是使用XmlSerializer类的重载方法：

public void Serialize(Stream stream, object o, XmlSerializerNamespaces namespaces);

进行序列化，其中“namespaces”参数可由以下代码创建：

XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces(
new[] { new XmlQualifiedName(string.Empty, "") });

补充：[XmlIgnore]，该特性可用于忽略公共字段的序列化，即使用了该特性标记的公共字段将不会被序列化