DataContract XML序列化和XML属性 [英] DataContract XML serialization and XML attributes

问题描述

是否有可能这个XML反序列化到标有DataContract属性？

Is it possible to deserialize this XML into an object marked with the DataContract attribute?

<root>
<distance units="m">1000</distance>
</root>

正如你可能会看到有单位属性。我不相信这是支持的。还是我错了？

As you may see there is "units" attribute. I don't believe that's supported. Or am I wrong?

推荐答案

这可以实现的，但你必须通过应用覆盖默认的序列化的 [XmlSerializerFormat] 归因于DataContract。虽然是可以做到的，这不执行，以及默认的序列化器，所以请谨慎使用。

This can be achieved, but you will have to override the default serializer by applying the [XmlSerializerFormat] attribute to the DataContract. Although it can be done, this does not perform as well as the default serializer, so use it with caution.

下面的类结构会给你结果你是后：

The following class structure will give you the result you are after:

using ...
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Xml.Serialization;

[DataContract]
[XmlSerializerFormat]
public class root
{
   public distance distance=new distance();
}

[DataContract]
public class distance
{
  [DataMember, XmlAttribute]
  public string units="m";

  [DataMember, XmlText]
  public int value=1000;
}

您可以用下面的code测试：

You can test this with the following code:

root mc = new root();
XmlSerializer ser = new XmlSerializer(typeof(root));
StringWriter sw = new StringWriter();
ser.Serialize(sw, mc);
Console.WriteLine(sw.ToString());
Console.ReadKey();

的输出将是：

<?xml version="1.0" encoding="utf-16"?>
<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                                   xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <distance units="m">1000</distance>
</root>

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