Example of binary serialization in C#.

Makefile

all: test.dll

test.dll: TestSerialization.cs
	mono-csc -t:library -pkg:mono-nunit $< -out:$@

test: test.dll
	nunit-console $<

clean:
	-rm test.dll *.xml
	-rm -rf %temp%
	-rm *.bin

TestSerialization.cs

/**
 * Serialization example in C#
 *
 * @copyright  Copyright (c) 2011 Vaclav Bohac
 * @license    GNU General Public License v3
 * @package    SerializationTest
 */

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

using NUnit.Framework;


namespace SerializationTest
{

	[Serializable]
	class Person
	{
		private string name;
		private int age;

		public string Name
		{
			set { name = value; }
			get { return name;  }
		}

		public int Age
		{
			set { age = value; }
			get { return age;  }
		}
	}

	[TestFixture()]
	public class SerializationTestSuite
	{
		[Test()]
		public void TestSerialization()
		{
			// Define object person.
			Person p = new Person();
			p.Name = "John";
			p.Age = 42;

			// Serialize object.
			IFormatter formatter = new BinaryFormatter();
			Stream stream = new FileStream("Person.bin", FileMode.Create, FileAccess.Write, FileShare.None);
			formatter.Serialize(stream, p);
			stream.Close();

			// Deserialize object.
			Stream readStream = new FileStream("Person.bin", FileMode.Open, FileAccess.Read, FileShare.Read);
			Person p2 = (Person) formatter.Deserialize(readStream);
			readStream.Close();

			// Test equality with new object.
			Assert.AreEqual(p.Name, p2.Name);
			Assert.AreEqual(p.Age, p2.Age);
		}
	}
}

This is so helpfull
,Thank you