我正在使用XMLSerializer序列化包含通用列表的对象
List <ChildBase> Children {get;set}
问题在于,每个元素ChildBase实际上都派生自一个抽象类。当我尝试反序列化时,我收到了invalidOperationException
ChildBase
有没有办法可以将XMLSerializer与派生对象一起使用?谢谢。
有三种方法可以做到这一点;您可以[XmlInclude]针对类型使用,也可以针对属性使用XmlElement/ XmlArrayItem。它们都显示在下面;取消注释您喜欢的那对:
[XmlInclude]
XmlElement
XmlArrayItem
using System; using System.Collections.Generic; using System.Xml.Serialization; public class MyWrapper { //2: [XmlElement("A", Type = typeof(ChildA))] //2: [XmlElement("B", Type = typeof(ChildB))] //3: [XmlArrayItem("A", Type = typeof(ChildA))] //3: [XmlArrayItem("B", Type = typeof(ChildB))] public List<ChildClass> Data { get; set; } } //1: [XmlInclude(typeof(ChildA))] //1: [XmlInclude(typeof(ChildB))] public abstract class ChildClass { public string ChildProp { get; set; } } public class ChildA : ChildClass { public string AProp { get; set; } } public class ChildB : ChildClass { public string BProp { get; set; } } static class Program { static void Main() { var ser = new XmlSerializer(typeof(MyWrapper)); var obj = new MyWrapper { Data = new List<ChildClass> { new ChildA { ChildProp = "abc", AProp = "def"}, new ChildB { ChildProp = "ghi", BProp = "jkl"}} }; ser.Serialize(Console.Out, obj); } }