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

问题描述

是否可以将此 XML 反序列化为标有 DataContract 属性的对象?

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

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

如您所见，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，但您必须通过将 [XmlSerializerFormat] 属性应用于 DataContract 来覆盖默认序列化程序.虽然可以做到，但它的性能不如默认的序列化器，因此请谨慎使用.

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你想要的结果:

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;
}

您可以使用以下代码进行测试:

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();

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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