c# - 如何对派生实体进行 xml 序列化

Question

public abstract class Base
{
    //abstract methods
}

public class Derived1 : Base
{
    //method implementations
}

public class Derived2 : Derived1
{
    //method implementations
}

我正在使用“Derived2”进行序列化

        var serializer = new XmlSerializer(typeof(Derived2));
        serializer.Serialize(stringwriter, dataToSerialize);

它为Use the XmlInclude or SoapInclude attribute to specify types that are not known statically.和提供了例外unable to generate xmldocument

现在，问题是，我不能在父实体上包含 xmlinclude 属性，因为我对父实体没有任何控制权。我可以完全控制大多数派生实体derived2。

为此实现序列化的任何解决方案。