使用派生类在C#中进行序列化

using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

[Serializable]
public class BaseClass
{
    public int BaseValue { get; set; }

    public BaseClass()
    {
        BaseValue = 1;
    }

    protected BaseClass(SerializationInfo info, StreamingContext context)
    {
        BaseValue = info.GetInt32("BaseValue");
    }

    public virtual void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        info.AddValue("BaseValue", BaseValue);
    }
}

[Serializable]
public class DerivedClass : BaseClass, ISerializable
{
    public int DerivedValue { get; set; }

    public DerivedClass()
    {
        DerivedValue = 2;
    }

    protected DerivedClass(SerializationInfo info, StreamingContext context) : base(info, context)
    {
        DerivedValue = info.GetInt32("DerivedValue");
    }

    public override void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        base.GetObjectData(info, context);
        info.AddValue("DerivedValue", DerivedValue);
    }

    public void GetObjectData(SerializationInfo info, StreamingContext context)
    {
        GetObjectData(info, context);
    }
}

class Program
{
    static void Main(string[] args)
    {
        DerivedClass obj = new DerivedClass();

        IFormatter formatter = new BinaryFormatter();
        Stream stream = new FileStream("serialized.bin", FileMode.Create, FileAccess.Write, FileShare.None);
        formatter.Serialize(stream, obj);
        stream.Close();

        stream = new FileStream("serialized.bin", FileMode.Open, FileAccess.Read, FileShare.None);
        obj = (DerivedClass)formatter.Deserialize(stream);
        stream.Close();
    }
}