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BitConverter.ToString Method (Byte[])

Converts the numeric value of each element of a specified array of bytes to its equivalent hexadecimal string representation.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static string ToString(
	byte[] value
)

Parameters

value
Type: System.Byte[]
An array of bytes.

Return Value

Type: System.String
A string of hexadecimal pairs separated by hyphens, where each pair represents the corresponding element in value; for example, "7F-2C-4A-00".

ExceptionCondition
ArgumentNullException

value is null.

All the elements of value are converted. The order of hexadecimal strings returned by the ToString method depends on whether the computer architecture is little-endian or big-endian.

The following code example converts Byte arrays to String objects with the ToString method.


// Example of the BitConverter.ToString( byte[ ] ) method.
using System;

class BytesToStringDemo
{
    // Display a byte array with a name.
    public static void WriteByteArray( byte[ ] bytes, string name )
    {
        const string underLine = "--------------------------------";

        Console.WriteLine( name );
        Console.WriteLine( underLine.Substring( 0, 
            Math.Min( name.Length, underLine.Length ) ) );
        Console.WriteLine( BitConverter.ToString( bytes ) );
        Console.WriteLine( );
    }

    public static void Main( )
    {
        byte[ ] arrayOne = {
             0,   1,   2,   4,   8,  16,  32,  64, 128, 255 };

        byte[ ] arrayTwo = {
            32,   0,   0,  42,   0,  65,   0, 125,   0, 197,
             0, 168,   3,  41,   4, 172,  32 };

        byte[ ] arrayThree = {
            15,   0,   0, 128,  16,  39, 240, 216, 241, 255, 
           127 };

        byte[ ] arrayFour = {
            15,   0,   0,   0,   0,  16,   0, 255,   3,   0, 
             0, 202, 154,  59, 255, 255, 255, 255, 127 };

        Console.WriteLine( "This example of the " +
            "BitConverter.ToString( byte[ ] ) \n" +
            "method generates the following output.\n" );

        WriteByteArray( arrayOne, "arrayOne" );
        WriteByteArray( arrayTwo, "arrayTwo" );
        WriteByteArray( arrayThree, "arrayThree" );
        WriteByteArray( arrayFour, "arrayFour" );
    }
}

/*
This example of the BitConverter.ToString( byte[ ] )
method generates the following output.

arrayOne
--------
00-01-02-04-08-10-20-40-80-FF

arrayTwo
--------
20-00-00-2A-00-41-00-7D-00-C5-00-A8-03-29-04-AC-20

arrayThree
----------
0F-00-00-80-10-27-F0-D8-F1-FF-7F

arrayFour
---------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
*/


.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

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.
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