c# – 當一個類繼承自List

ItemType>,但是當我這樣做時,XmlSerializer不會序列化在我的類中宣告的任何屬性或欄位,下面的示例演示：

public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
DoSerialize();
}
private void DoSerialize()
{
MyClass obj = new MyClass();
obj.Add(1);
obj.Add(2);
obj.Add(3);
XmlSerializer s = new XmlSerializer(typeof(MyClass));
StringWriter sw = new StringWriter();
s.Serialize(sw, obj);
}
}
[Serializable]
[XmlRoot]
public class MyClass : List<int>
{
public MyClass()
{
}
int myAttribute = 2011;
[XmlAttribute]
public int MyAttribute
{
get
{
return myAttribute;
}
set
{
myAttribute = value;
}
}
}

生成的XML：

<?xml version="1.0" encoding="utf-16"?>
<ArrayOfInt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<int>1</int>
<int>2</int>
<int>3</int>
</ArrayOfInt>

：

• Classes that implement ICollection or IEnumerable. Only collections are

  serialized, not public properties.

(檢視“可序列化的專案”部分).Someone has filed a bug against this, but it won’t be changed – 這裡,Microsoft還確認,不包括實現ICollection的類的屬性實際上是XmlSerializer的行為.

解決辦法是：

實現IXmlSerializable並自己控制序列化.

要麼

>更改MyClass,使其具有List型別的公共屬性(並且不要對其進行子類化).

要麼

>使用DataContractSerializer來處理這種情況.