Guid.ToByteArray Method (System)

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.NET Framework Class Library
Guid.ToByteArray Method

Returns a 16-element byte array that contains the value of this instance.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
Syntax
Visual Basic
Public Function ToByteArray As Byte()
C#
public byte[] ToByteArray()
Visual C++
public:
array<unsigned char>^ ToByteArray()
F#
member ToByteArray : unit -> byte[]

Return Value

Type: System.Byte[]
A 16-element byte array.
Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
See Also

Reference

Guid Structure
System Namespace
Community Content

kanivarus
Strange behavior
When I convert a a Guid to a byte [] using .ToByteArray(), the first 8 bytes would be in little endian order and the second half would be in big endian order. After running the code below, baKey would contain (little endian) 9A, DD, F5, A2, 16, 1B, C2, 47, (big endian starts here) A0, 72, 52, 83, 95, B5, F3, 02. This seems like a bug. $0$0 $0String sKey = "A2F5DD9A-1B16-47C2-A072-528395B5F302";$0 $0Guid guidKey = Guid.Parse(sKey);$0 $0byte[] baKey = guidKey.ToByteArray();$0 $0