DataContractSerializer跳过OpenAccess版本的值

听起来像 [DataMember] 针对字段设置(或默认为字段),并绕过懒惰行为。如果你控制了类型,你也许可以添加一个 [OnSerializing]

如果生成了类型,请查看它是否是 partial class 。如果是这样,您可以添加另一个 分部类 [序列化] 方法在那里。..

示例(取消注释最后一个块以使其工作):

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

class Program {
    static void Main() {
        using (XmlWriter writer = XmlWriter.Create(Console.Out)) {
            new DataContractSerializer(typeof(Foo))
                .WriteObject(writer, new Foo());
        }       
    }
}

[DataContract]
partial class Foo {
    [DataMember(Name="Bar")]
    private int? bar;
    public int Bar {
        get {
            if (bar == null) bar = 27; // somthing lazy
            return bar.GetValueOrDefault();
        }
        set { bar = value; }
    }
}
/* UNCOMMENT THIS
partial class Foo {
    [OnSerializing]
    private void BeforeSerialize(StreamingContext ctx) {
        int tmp = Bar;
    }
}
*/