使用XML序列化將屬性放入不同的XML命名空間

Question

我使用的是VSTS2008 + C＃+ .Net 3.0。 我使用下面的代碼來序列化XML，這是我當前的代碼和序列化的XML文件。 我的目的是讓MyInnerObjectProperties屬於一個特殊的XML命名空間（ http：// foo / 2009 ）並將此命名空間作為默認命名空間。 任何想法如何實現這一點？

當前輸出：

<?xml version="1.0"?>
<MyClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <MyObjectProperty>
    <MyInnerObjectProperties>
      <MyInnerObjectProperty>
        <ObjectName>Foo Type</ObjectName>
      </MyInnerObjectProperty>
      <MyInnerObjectProperty>
        <ObjectName>Goo Type</ObjectName>
      </MyInnerObjectProperty>
    </MyInnerObjectProperties>
  </MyObjectProperty>
</MyClass>

當前代碼：

public class MyClass
{
    private MyObject[] _myObjectProperty;

    [XmlElement(IsNullable=false)]
    public MyObject[] MyObjectProperty
    {
        get
        {
            return _myObjectProperty;
        }
        set
        {
            _myObjectProperty = value;
        }
    }
}
public class MyObject
{
    private MyInnerObject[] _myInnerObjectProperty;

    [XmlArrayItemAttribute("MyInnerObjectProperty", typeof(MyInnerObject),  IsNullable=false)]
    public MyInnerObject[] MyInnerObjectProperties
    {
        get
        {
            return _myInnerObjectProperty;
        }
        set
        {
            _myInnerObjectProperty = value;
        }
    }
}

public class MyInnerObject
{
    public string ObjectName;
}

public class Program
{
    static void Main(string[] args)
    {
        XmlSerializer s = new XmlSerializer(typeof(MyClass));
        FileStream fs = new FileStream("foo.xml", FileMode.Create);
        MyClass instance = new MyClass();
        instance.MyObjectProperty = new MyObject[1];
        instance.MyObjectProperty[0] = new MyObject();
        instance.MyObjectProperty[0].MyInnerObjectProperties = new MyInnerObject[2];
        instance.MyObjectProperty[0].MyInnerObjectProperties[0] = new MyInnerObject();
        instance.MyObjectProperty[0].MyInnerObjectProperties[0].ObjectName = "Foo Type";
        instance.MyObjectProperty[0].MyInnerObjectProperties[1] = new MyInnerObject();
        instance.MyObjectProperty[0].MyInnerObjectProperties[1].ObjectName = "Goo Type";

        s.Serialize(fs, instance);

        return;
    }
}

Answer 1

這個怎么樣：

[XmlArrayItemAttribute( Namespace = "http://foo.com/2009" /* other attr. params. */ )]
public MyInnerObject[] MyInnerObjectProperties
{
    get { ... }
    set { ... }
}

Answer 2

嘗試

public class MyObject
{
    [XmlArrayItemAttribute("MyInnerObjectProperty", typeof (MyInnerObject),
        IsNullable = false)]
    [XmlArray(Namespace = "http://foo.com/2009")]
    public MyInnerObject[] MyInnerObjectProperties { get; set; }
}

對我來說，這會產生：

<?xml version="1.0" encoding="utf-8"?>
<MyClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <MyObjectProperty>
        <MyInnerObjectProperties xmlns="http://foo.com/2009">
            <MyInnerObjectProperty>
                <ObjectName>Foo Type</ObjectName>
            </MyInnerObjectProperty>
            <MyInnerObjectProperty>
                <ObjectName>Goo Type</ObjectName>
            </MyInnerObjectProperty>
        </MyInnerObjectProperties>
    </MyObjectProperty>
</MyClass>

Answer 3

您需要創建一個XmlSerializerNamespaces對象，並將所需的命名空間添加到它。

XmlSerializerNamespaces對象包含XmlSerializer用於在XML文檔實例中生成限定名稱的XML名稱空間和前綴。

在你的c＃代碼中：

XmlSerializerNamespaces myNameSpaces = new XmlSerializerNamespaces();
myNameSpaces.Add("MyInnerObject", "http://foo/2009");

然后，向您的類添加一個屬性，如下所示：

public class MyInnerObject
{
[XmlElement(Namespace = "http://foo/2009")]

更多信息：

http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlserializernamespaces.aspx