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

namespace serialize
{
	[Serializable]
	public class emp
	{
		int id;
		string name ;
		double salary ;
		public emp ( int i, string n, double s)
		{
			id = i ;
			name = n ;
			salary = s ;
		}

		public string ToString()
		{
			return id + " " + name + " " + salary ;
		}
	}

	public class Class1
	{
		public static int Main ( string[] args )
		{
			emp[] e =
			{
				new emp ( 1, "Rahul", 4500 ),
				new emp ( 2, "Janaki", 5345 ),
				new emp ( 3, "Amol", 4460 ),
				new emp ( 4, "Anil", 9456 ),
				new emp ( 5, "Srikanth", 9500 ),
				new emp ( 6, "Ravi", 5670 ),
				new emp ( 7, "Abhijeet", 3345 ),
				new emp ( 8, "prashant", 8500 )
			} ;

			File f = new File ( "C:\\emp.dat" ) ;
			Stream s = f.Open ( FileMode.Create ) ;
			BinaryFormatter b = new BinaryFormatter() ;

			for ( int i = 0 ; i < e.Length ; i++ )
			{
				b.Serialize ( s, e[i] ) ;
			}

			s.Close();

			s = f.Open(FileMode.Open);
			for ( int i = 0 ; i < 8 ; i++)
			{
				emp ee = (emp)b.Deserialize(s);
				Console.WriteLine ( ee.ToString() ) ;
			}

			s.Close();
			return 0;
		}
	}
}
[/CODE}

The Serializable attribute indicates that a class can be serialized. Here we intend to serialize the emp class so we should write it above the class definition. We created a new file emp.dat in the C drive and dumped the emp objects in it. Next we opened the same file and used the information for displaying. The BinaryFormatter class provides a way to serialize and deserialize an object, or an entire graph of connected objects; it uses a binary format for the serialized stream, which is both very compact, and fast to parse.