Is a stream seekable : 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 void Main() {
        byte[] buf2 = new byte[] { 97, 112, 112, 108, 101, 115, 97, 117, 99, 101 };
        FileStream s = new FileStream("Foo.txt", FileMode.Open);
        Console.WriteLine("Length: {0}, Position: {1}", s.Length, s.Position);
        if (s.CanSeek) {
            s.Seek(13, SeekOrigin.Begin);
            Console.WriteLine(
                "Position: {0}", s.Position);
            s.Write(buf2, 0, buf2.Length);
        }
    }
}