1. BinaryWriter and BinaryReader
Jason

2. BinaryWriter
 Writes primitive types in binary to a stream and supports writing strings in a
specific encoding.
 BinaryWriter()
 BinaryWriter(Stream)
 BinaryWriter(Stream, Encoding)
 BinaryWriter(Stream, Encoding, Boolean)

3. BinaryWriter
 Methods
Write(Boolean) Write(Byte) Write(Byte[]) Write(Char)
Write(Char[]) Write(Decimal) Write(Double) Write(Int16)
Write(Int32) Write(Int64) Write(SByte) Write(Single)
Write(String) Write(UInt16) Write(UInt32) Write(UInt64)
Write(Byte[], Int32, Int32) Write(Char[], Int32, Int32)

4. BinaryReader
 Reads primitive data types as binary values in a specific encoding.
 BinaryReader(Stream)
 BinaryReader(Stream, Encoding)
 BinaryReader(Stream, Encoding, Boolean)

5. BinaryReader
 Methods
Read() ReadBoolean ReadByte ReadBytes
ReadChar ReadChars ReadDecimal ReadDouble
ReadInt16 ReadInt32 ReadInt64 ReadSByte
ReadSingle ReadString ReadUInt16 ReadUInt32
Read(Char[], Int32, Int32) Read(Byte[], Int32, Int32)

6. BinaryReader
 example
using (var writer = new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
writer.Write(10);
}
using (var reader = new BinaryReader(File.Open(fileName, FileMode.Open)))
{
reader.ReadInt32();
reader.ReadBytes();
}
reader.ReadInt32()
Answer: 10
reader.ReadBytes()
Answer:

7. BinaryReader
 example
using (var writer = new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
writer.Write(“Jason”);
}
using (var reader = new BinaryReader(File.Open(fileName, FileMode.Open)))
{
reader.ReadString();
reader.ReadBytes();
}
reader.ReadString()
Answer: Jason
reader.ReadBytes()
Answer:

8. BinaryWriter and BinaryReader
 example
using (var writer = new BinaryWriter(File.Open(fileName, FileMode.Create)))
{
writer.Write(1.250F);
writer.Write(@"c:Temp");
writer.Write(10);
writer.Write(true);
}
using (var reader = new BinaryReader(File.Open(fileName, FileMode.Open)))
{
var aspectRatio = reader.ReadSingle();
var tempDirectory = reader.ReadString();
var autoSaveTime = reader.ReadInt32();
var showStatusBar = reader.ReadBoolean();
}

9. BinaryReader
 Remarks
 BinaryReader does not restore the file position after an unsuccessful read.

10. BinaryReader VS StreamReader
 If the entirety of your data is a straightforward binary encoding of text data,
use StreamReader.
 If you've fundamentally got binary data which may happen to have some
portions in text, use BinaryReader

11. Reference
 File and Stream I/O
 http://msdn.microsoft.com/en-us/library/k3352a4t(v=vs.110).aspx
 BinaryReader
 http://msdn.microsoft.com/en-us/library/system.io.binaryreader(v=vs.110).aspx
 BinaryWriter
 http://msdn.microsoft.com/en-us/library/gg712841(v=vs.110).aspx