我通过david.woodward发现了这篇文章 ，展示了一种可行的和on-the-rails方法来处理这种情况（即，当更改基类不是一个选项时）。 它建议为XmlSerializer提供XmlAttributeOverrides 。

使用您提供的对象模型，以下代码说明了它的用法。 它的工作原理是明确告诉XmlSerializer忽略基类中的隐藏属性，在本例中为Model.Template 。

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 using System; using System.IO; using System.Text; using System.Xml.Serialization; class Program { static void Main(string[] args) { ConcreteTemplate ct = new ConcreteTemplate() { SomeProperty = "hello" }; ConcreteGenericModel cgm = new ConcreteGenericModel(ct); XmlAttributeOverrides attrOverides = new XmlAttributeOverrides(); XmlAttributes attrs = new XmlAttributes() { XmlIgnore = true }; attrOverides.Add(typeof(Model), "Template", attrs); Type[] extraTypes = new Type[0]; XmlSerializer serializer = new XmlSerializer(typeof(ConcreteGenericModel), attrOverides, extraTypes, null, null); StringBuilder sb = new StringBuilder(); using (StringWriter writer = new StringWriter(sb)) serializer.Serialize(writer, cgm); string serializedClass = sb.ToString(); Console.WriteLine(serializedClass); ConcreteGenericModel deserializedCgm; using (StringReader reader = new StringReader(serializedClass)) deserializedCgm = (ConcreteGenericModel)serializer.Deserialize(reader); Console.ReadLine(); } } public abstract class Template { // Some properties and methods defined public virtual string SomeProperty { get; set; } } public abstract class Template : Template where TTemplate : Template { // No new properties defined, but methods overriden } public class ConcreteTemplate : Template { } public abstract class Model { public Model() { } public Template Template { get; set; } public Model(Template t) { Template = t; } // More properties and methods } public class ConcreteModel : Model { public ConcreteModel(Template t) : base(t) { } } public abstract class Model : Model where TModel : Model where TTemplate : Template { public Model() { } public new TTemplate Template { get { return (TTemplate)base.Template; } set { base.Template = value; } } public Model(TTemplate t) : base(t) { } // Override some methods but no new properties } public class ConcreteGenericModel : Model { public ConcreteGenericModel() { } public ConcreteGenericModel(ConcreteTemplate t) : base(t) { } }