忽略XML序列化属性的属性使用XmlSerializer的.NET [英] Ignore property of a property in Xml Serialization in .NET using XmlSerializer

问题描述

我进行使用XML serrialization 的XmlSerializer 。我进行序列化 ClassA的，其中包含一个名为类型的 myProperty的属性 ClassB的。我不想要的特定财产 ClassB的序列化。

I am carrying out Xml serrialization using XmlSerializer. I am carrying out serialization of ClassA, which contains property named MyProperty of type ClassB. I don't want a particular property of ClassB to be serialized.

我必须使用 XmlAttributeOverrides 由于类是在另一个库。 如果属性是 ClassA的本身，那将是直接的。

I have to use XmlAttributeOverrides as the classes are in another library. If the property was in ClassA itself, it would have been straightforward.

XmlAttributeOverrides xmlOver = new XmlAttributeOverrides();
XmlAttributes xmlAttr = new XmlAttributes();
xmlAttr.XmlIgnore = true;
xmlOver.Add(typeof(ClassA), "MyProperty", xmlAttr);

XmlSerializer ser = new XmlSerializer(typeof(ClassA), xmlOver);

如何完成，如果该属性是在 ClassB的，我们需要序列 ClassA的？

推荐答案

您几乎得到了它，只是更新替代来指向 ClassB的而不是 ClassA的：

You almost got it, just update your overrides to point to ClassB instead of ClassA:

XmlAttributeOverrides xmlOver = new XmlAttributeOverrides();
XmlAttributes xmlAttr = new XmlAttributes();
xmlAttr.XmlIgnore = true;

//change this to point to ClassB's property to ignore
xmlOver.Add(typeof(ClassB), "ThePropertyNameToIgnore", xmlAttr);

XmlSerializer ser = new XmlSerializer(typeof(ClassA), xmlOver);

---

快速测试，给出：

---

Quick test, given:

public class ClassA
{
    public ClassB MyProperty { get; set; }
}

public class ClassB
{
    public string ThePropertyNameToIgnore { get; set; }
    public string Prop2 { get; set; }
}

和出口方式：

public static string ToXml(object obj)
{
    XmlAttributeOverrides xmlOver = new XmlAttributeOverrides();
    XmlAttributes xmlAttr = new XmlAttributes();
    xmlAttr.XmlIgnore = true;
    xmlOver.Add(typeof(ClassB), "ThePropertyNameToIgnore", xmlAttr);


    XmlSerializer xs = new XmlSerializer(typeof(ClassA), xmlOver);
    using (MemoryStream stream = new MemoryStream())
    {
        xs.Serialize(stream, obj);
        return System.Text.Encoding.UTF8.GetString(stream.ToArray());
    }
}

主要方法：

void Main()
{
    var classA = new ClassA {
        MyProperty = new ClassB {
            ThePropertyNameToIgnore = "Hello",
            Prop2 = "World!"
        }
    };

    Console.WriteLine(ToXml(classA));
}

输出这个与ThePropertyNameToIgnore省略：

Outputs this with "ThePropertyNameToIgnore" omitted:

<?xml version="1.0"?>
<ClassA xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <MyProperty>
    <Prop2>World!</Prop2>
  </MyProperty>
</ClassA>

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