using System;

using System.Collections.Generic;

using System.IO;

using System.Runtime.Serialization;

using System.Runtime.Serialization.Formatters.Binary;

​

public class Program

{

    public static void Main()

    {

        var outer = new Outer{Inners = new List<Inner>{new Inner()}};

        Console.WriteLine("Original: " + outer.Inners[0]);

​

        Outer copiedOuter;

        var formatter = new BinaryFormatter();

        using (var stream = new MemoryStream())

        {

            formatter.Serialize(stream, outer);

            stream.Position = 0;

            copiedOuter = (Outer)formatter.Deserialize(stream);

        }

​

        Console.WriteLine("Copy: " + copiedOuter.Inners[0]);

    }

}

​

[Serializable]

public class Outer : ISerializable

{

    public List<Inner> Inners { get; set; }

​

    public Outer()

    {

    }

​

    private Outer(SerializationInfo info, StreamingContext context)

    {

        Inners = new List<Inner>((IList<Inner>) info.GetValue("", typeof(IList<Inner>)));

        Console.WriteLine(info.GetString("testOuter"));

    }

​

    void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)

    {

        info.AddValue("", Inners);

        info.AddValue("testOuter", "from outer");

    }

}

​

[Serializable]

public class Inner : ISerializable

{

    public Inner()

    {

    }

​

    private Inner(SerializationInfo info, StreamingContext context)

    {

        Console.WriteLine(info.GetString("testInner"));

    }

​

    void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)

    {

        info.AddValue("testInner", "from inner");

    }

}