David Cumps

BinaryReader Class and BinaryWriter Class

Part of my 2008 study notes for exam 70-536 (.NET Framework 2.0).

Overview

  • Used to read and write binary data from streams.
  • Call the correct Read methods when using a BinaryReader.

Good practice

  • Remember to call Close, since it has a stream behind it.

Examples

Read and Write Binary

FileStream a = File.Create(@"C:\Public\BinaryTest.dat");
 
BinaryWriter b = new BinaryWriter(a);
b.Write(new byte[] { 47, 50 });
b.Write("Hello World");
b.Write(42);
b.Close();
 
a = File.OpenRead(@"C:\Public\BinaryTest.dat");
 
BinaryReader c = new BinaryReader(a);
c.ReadBytes(2);
Console.WriteLine(c.ReadString());
Console.WriteLine(c.ReadInt32());
c.Close();
About Me David Cumps

My name is

David Cumps

Freelance polyglot software engineer

A passionate geek, always curious, always learning.
Work with me
Recent Articles
Tags

You May Also Like

ArrayList Class

Resizeable, unordered, index-based collection. Suffers from boxing/unboxing when working with value types. Implements IEnumerator, allowing foreach…

  • Aug 26, 2008

BitArray Class

Contains an array of true/false values. Resizable through the Length property. Supports bitwise operations.

  • Aug 26, 2008