Write/read bytes using FileStream : FileStream « File Directory Stream « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. File Directory Stream
3. FileStream

using System;
using System.IO;

public class MainClass
{
    public static int Main(string[] args)
    {
    FileStream myFStream = new FileStream("test.dat", FileMode.OpenOrCreate, FileAccess.ReadWrite);
      
    for(int i = 0; i < 256; i++)
      myFStream.WriteByte((byte)i);

    myFStream.Position = 0;

    for(int i = 0; i < 256; i++)
      Console.Write(myFStream.ReadByte());  
    Console.WriteLine();
    myFStream.Close();

    return 0;
    }
}

0123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354
5556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021
0310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513
6137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
1701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022
0320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523
6237238239240241242243244245246247248249250251252253254255