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BitConverter.ToString Method

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Definition

Namespace:
System
Assembly:
System.Runtime.Extensions.dll
Assembly:
System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

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

Overloads

ToString(Byte[])

Converts the numeric value of each element of a specified array of bytes to its equivalent hexadecimal string representation.
ToString(Byte[], Int32)

Converts the numeric value of each element of a specified subarray of bytes to its equivalent hexadecimal string representation.
ToString(Byte[], Int32, Int32)

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

ToString(Byte[])

Source:
BitConverter.cs
Source:
BitConverter.cs
Source:
BitConverter.cs

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

public:
 static System::String ^ ToString(cli::array <System::Byte> ^ value);
public static string ToString (byte[] value);
static member ToString : byte[] -> string
Public Shared Function ToString (value As Byte()) As String

Parameters

value
Byte[]

An array of bytes.

Returns

String

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

Exceptions

ArgumentNullException

value is null.

Examples

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

// Example of the BitConverter::ToString( unsigned char[ ] ) method.
using namespace System;

// Display a byte array with a name.
void WriteByteArray( array<unsigned char>^bytes, String^ name )
{
   String^ underLine = "--------------------------------";
   Console::WriteLine( name );
   Console::WriteLine( underLine->Substring( 0, Math::Min( name->Length, underLine->Length ) ) );
   Console::WriteLine( BitConverter::ToString( bytes ) );
   Console::WriteLine();
}

int main()
{
   array<unsigned char>^arrayOne = {0,1,2,4,8,16,32,64,128,255};
   array<unsigned char>^arrayTwo = {32,0,0,42,0,65,0,125,0,197,0,168,3,41,4,172,32};
   array<unsigned char>^arrayThree = {15,0,0,128,16,39,240,216,241,255,127};
   array<unsigned char>^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( unsigned char[ ] ) \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( unsigned char[ ] )
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
*/

// 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
*/

open System

// Display a byte array with a name.
let writeByteArray (bytes: byte[]) (name: string) =
    printfn $"{name}"
    printfn $"{String('-', name.Length)}"
    printfn $"{BitConverter.ToString bytes}\n"

let arrayOne = 
    [| 0uy; 1uy; 2uy; 4uy; 8uy; 16uy; 32uy; 64uy; 128uy; 255uy |]

let arrayTwo = 
    [| 32uy; 0uy; 0uy; 42uy; 0uy; 65uy; 0uy; 125uy; 0uy
       197uy; 0uy; 168uy; 3uy; 41uy; 4uy; 172uy; 32uy |]

let arrayThree =
    [| 15uy; 0uy; 0uy; 128uy; 16uy; 39uy; 240uy; 216uy; 241uy; 255uy; 127uy |]

let arrayFour =
    [| 15uy; 0uy; 0uy; 0uy; 0uy; 16uy; 0uy; 255uy; 3uy; 0uy; 0uy; 202uy
       154uy;  59uy; 255uy; 255uy; 255uy; 255uy; 127uy |]

printfn "This example of the BitConverter.ToString(byte []) \nmethod 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

' Example of the BitConverter.ToString( Byte( ) ) method.
Module BytesToStringDemo

    ' Display a Byte array with a name.
    Sub WriteByteArray( bytes( ) As Byte, name As String )
       
        Const underLine As String = "--------------------------------"

        Console.WriteLine( name )
        Console.WriteLine( underLine.Substring( 0, _
            Math.Min( name.Length, underLine.Length ) ) )
        Console.WriteLine( BitConverter.ToString( bytes ) )
        Console.WriteLine( )
    End Sub

    Sub Main( )
        Dim arrayOne as Byte( ) = { _
              0,   1,   2,   4,   8,  16,  32,  64, 128, 255 }

        Dim arrayTwo as Byte( ) = { _
             32,   0,   0,  42,   0,  65,   0, 125,   0, 197, _
              0, 168,   3,  41,   4, 172,  32 }

        Dim arrayThree as Byte( ) = { _
             15,   0,   0, 128,  16,  39, 240, 216, 241, 255, _
            127 }

        Dim arrayFour as Byte( ) = { _
             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( ) ) " & vbCrLf & _
            "method generates the following output." & vbCrLf )

        WriteByteArray( arrayOne, "arrayOne" )
        WriteByteArray( arrayTwo, "arrayTwo" )
        WriteByteArray( arrayThree, "arrayThree" )
        WriteByteArray( arrayFour, "arrayFour" )
    End Sub 
End Module

' 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

Remarks

All the elements of value are converted.

Applies to

ToString(Byte[], Int32)

Source:
BitConverter.cs
Source:
BitConverter.cs
Source:
BitConverter.cs

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

public:
 static System::String ^ ToString(cli::array <System::Byte> ^ value, int startIndex);
public static string ToString (byte[] value, int startIndex);
static member ToString : byte[] * int -> string
Public Shared Function ToString (value As Byte(), startIndex As Integer) As String

Parameters

value
Byte[]

An array of bytes.

startIndex
Int32

The starting position within value.

Returns

String

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

Exceptions

ArgumentNullException

value is null.

ArgumentOutOfRangeException

startIndex is less than zero or greater than the length of value minus 1.

Examples

The following code example converts the part of a Byte array starting at the specified startIndex to a String with the ToString method.

// Example of some BitConverter::ToString( ) method overloads.
using namespace System;

// Display a byte array, using multiple lines if necessary.
void WriteMultiLineByteArray( array<unsigned char>^bytes, String^ name )
{
   const int rowSize = 20;
   String^ underLine = "--------------------------------";
   int iter;
   Console::WriteLine( name );
   Console::WriteLine( underLine->Substring( 0, Math::Min( name->Length, underLine->Length ) ) );
   for ( iter = 0; iter < bytes->Length - rowSize; iter += rowSize )
   {
      Console::Write( BitConverter::ToString( bytes, iter, rowSize ) );
      Console::WriteLine( "-" );

   }
   Console::WriteLine( BitConverter::ToString( bytes, iter ) );
   Console::WriteLine();
}

int main()
{
   array<unsigned char>^arrayOne = {0,0,0,0,128,63,0,0,112,65,0,255,127,71,0,0,128,59,0,0,128,47,73,70,131,5,75,6,158,63,77,6,158,63,80,6,158,63,30,55,190,121,255,255,127,255,255,127,127,1,0,0,0,192,255,0,0,128,255,0,0,128,127};
   array<unsigned char>^arrayTwo = {255,255,255,0,0,20,0,33,0,0,0,1,0,0,0,100,167,179,182,224,13,0,202,154,59,0,143,91,0,170,170,170,170,170,170,0,0,232,137,4,35,199,138,255,232,244,255,252,205,255,255,129};
   array<unsigned char>^arrayThree = {0,222,0,0,0,224,111,64,0,0,224,255,255,255,239,65,0,0,131,0,0,0,112,63,0,143,0,100,0,0,240,61,223,136,30,28,254,116,170,1,250,89,140,66,202,192,243,63,251,89,140,66,202,192,243,63,252,89,140,66,202,192,243,63,82,211,187,188,232,126,255,255,255,244,255,239,127,1,0,0,0,10,17,0,0,248,255,0,88,0,91,0,0,240,255,0,0,240,157};
   Console::WriteLine( "This example of the\n"
   "  BitConverter::ToString( unsigned char[ ], int ) and \n"
   "  BitConverter::ToString( unsigned char[ ], int, int ) \n"
   "methods generates the following output.\n" );
   WriteMultiLineByteArray( arrayOne, "arrayOne" );
   WriteMultiLineByteArray( arrayTwo, "arrayTwo" );
   WriteMultiLineByteArray( arrayThree, "arrayThree" );
}

/*
This example of the
  BitConverter::ToString( unsigned char[ ], int ) and
  BitConverter::ToString( unsigned char[ ], int, int )
methods generates the following output.

arrayOne
--------
00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
00-80-7F

arrayTwo
--------
FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81

arrayThree
----------
00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D
*/

// Example of some BitConverter.ToString( ) method overloads.
using System;

class BytesToStringDemo
{
    // Display a byte array, using multiple lines if necessary.
    public static void WriteMultiLineByteArray( byte[ ] bytes,
        string name )
    {
        const int rowSize = 20;
        const string underLine = "--------------------------------";
        int iter;

        Console.WriteLine( name );
        Console.WriteLine( underLine.Substring( 0,
            Math.Min( name.Length, underLine.Length ) ) );

        for( iter = 0; iter < bytes.Length - rowSize; iter += rowSize )
        {
            Console.Write(
                BitConverter.ToString( bytes, iter, rowSize ) );
            Console.WriteLine( "-" );
        }

        Console.WriteLine( BitConverter.ToString( bytes, iter ) );
        Console.WriteLine( );
    }

    public static void Main( )
    {
        byte[ ] arrayOne = {
              0,   0,   0,   0, 128,  63,   0,   0, 112,  65,
              0, 255, 127,  71,   0,   0, 128,  59,   0,   0,
            128,  47,  73,  70, 131,   5,  75,   6, 158,  63,
             77,   6, 158,  63,  80,   6, 158,  63,  30,  55,
            190, 121, 255, 255, 127, 255, 255, 127, 127,   1,
              0,   0,   0, 192, 255,   0,   0, 128, 255,   0,
              0, 128, 127 };

        byte[ ] arrayTwo = {
            255, 255, 255,   0,   0,  20,   0,  33,   0,   0,
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224,
             13,   0, 202, 154,  59,   0, 143,  91,   0, 170,
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4,
             35, 199, 138, 255, 232, 244, 255, 252, 205, 255,
            255, 129 };

        byte[ ] arrayThree = {
              0, 222,   0,   0,   0, 224, 111,  64,   0,   0,
            224, 255, 255, 255, 239,  65,   0,   0, 131,   0,
              0,   0, 112,  63,   0, 143,   0, 100,   0,   0,
            240,  61, 223, 136,  30,  28, 254, 116, 170,   1,
            250,  89, 140,  66, 202, 192, 243,  63, 251,  89,
            140,  66, 202, 192, 243,  63, 252,  89, 140,  66,
            202, 192, 243,  63,  82, 211, 187, 188, 232, 126,
            255, 255, 255, 244, 255, 239, 127,   1,   0,   0,
              0,  10,  17,   0,   0, 248, 255,   0,  88,   0,
             91,   0,   0, 240, 255,   0,   0, 240, 157 };

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

        WriteMultiLineByteArray( arrayOne, "arrayOne" );
        WriteMultiLineByteArray( arrayTwo, "arrayTwo" );
        WriteMultiLineByteArray( arrayThree, "arrayThree" );
    }
}

/*
This example of the
  BitConverter.ToString( byte[ ], int ) and
  BitConverter.ToString( byte[ ], int, int )
methods generates the following output.

arrayOne
--------
00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
00-80-7F

arrayTwo
--------
FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81

arrayThree
----------
00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D
*/

open System

// Display a byte array, using multiple lines if necessary.
let writeMultiLineByteArray (bytes: byte []) (name: string) =
    let rowSize = 20

    printfn $"{name}"
    printfn $"{String('-', name.Length)}"

    let mutable iter = 0
    for i in 0 .. rowSize .. (bytes.Length - rowSize - 1) do
        printfn $"{BitConverter.ToString(bytes, i, rowSize)}-"
        iter <- i
    printfn $"{BitConverter.ToString(bytes, iter + rowSize)}\n"

let arrayOne =
    [| 0uy; 0uy; 0uy; 0uy; 128uy; 63uy; 0uy; 0uy; 112uy; 65uy
       0uy; 255uy; 127uy; 71uy; 0uy; 0uy; 128uy; 59uy; 0uy; 0uy
       128uy; 47uy; 73uy; 70uy; 131uy; 5uy; 75uy; 6uy; 158uy; 63uy
       77uy; 6uy; 158uy; 63uy; 80uy; 6uy; 158uy; 63uy; 30uy; 55uy
       190uy; 121uy; 255uy; 255uy; 127uy; 255uy; 255uy; 127uy; 127uy; 1uy
       0uy; 0uy; 0uy; 192uy; 255uy; 0uy; 0uy; 128uy; 255uy; 0uy
       0uy; 128uy; 127uy |]

let arrayTwo =
    [| 255uy; 255uy; 255uy; 0uy; 0uy; 20uy; 0uy; 33uy; 0uy; 0uy
       0uy; 1uy; 0uy; 0uy; 0uy; 100uy; 167uy; 179uy; 182uy; 224uy
       13uy; 0uy; 202uy; 154uy; 59uy; 0uy; 143uy; 91uy; 0uy; 170uy
       170uy; 170uy; 170uy; 170uy; 170uy; 0uy; 0uy; 232uy; 137uy; 4uy
       35uy; 199uy; 138uy; 255uy; 232uy; 244uy; 255uy; 252uy; 205uy; 255uy
       255uy; 129uy |]

let arrayThree = 
    [| 0uy; 222uy; 0uy; 0uy; 0uy; 224uy; 111uy; 64uy; 0uy; 0uy
       224uy; 255uy; 255uy; 255uy; 239uy; 65uy; 0uy; 0uy; 131uy; 0uy
       0uy; 0uy; 112uy; 63uy; 0uy; 143uy; 0uy; 100uy; 0uy; 0uy
       240uy; 61uy; 223uy; 136uy; 30uy; 28uy; 254uy; 116uy; 170uy; 1uy
       250uy; 89uy; 140uy; 66uy; 202uy; 192uy; 243uy; 63uy; 251uy; 89uy
       140uy; 66uy; 202uy; 192uy; 243uy; 63uy; 252uy; 89uy; 140uy; 66uy
       202uy; 192uy; 243uy; 63uy; 82uy; 211uy; 187uy; 188uy; 232uy; 126uy
       255uy; 255uy; 255uy; 244uy; 255uy; 239uy; 127uy; 1uy; 0uy; 0uy
       0uy; 10uy; 17uy; 0uy; 0uy; 248uy; 255uy; 0uy; 88uy; 0uy
       91uy; 0uy; 0uy; 240uy; 255uy; 0uy; 0uy; 240uy; 157uy |]

printfn "This example of the\n  BitConverter.ToString(byte [], int) and \n  BitConverter.ToString(byte [], int, int) \nmethods generates the following output.\n"

writeMultiLineByteArray arrayOne "arrayOne"
writeMultiLineByteArray arrayTwo "arrayTwo"
writeMultiLineByteArray arrayThree "arrayThree"


// This example of the
//   BitConverter.ToString(byte [], int) and
//   BitConverter.ToString(byte [], int, int)
// methods generates the following output.
//
// arrayOne
// --------
// 00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
// 80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
// BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
// 00-80-7F
//
// arrayTwo
// --------
// FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
// 0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
// 23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81
//
// arrayThree
// ----------
// 00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
// 00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
// FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
// CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
// 00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D

' Example of some BitConverter.ToString( ) method overloads.
Module BytesToStringDemo

    ' Display a Byte array, using multiple lines if necessary.
    Sub WriteMultiLineByteArray( bytes( ) As Byte, name As String )
       
        Const rowSize As Integer = 20 
        Const underLine As String = "--------------------------------"
        Dim iter As Integer

        Console.WriteLine( name )
        Console.WriteLine( underLine.Substring( 0, _
            Math.Min( name.Length, underLine.Length ) ) )

        For iter = 0 To bytes.Length - rowSize - 1 Step rowSize
            Console.Write( _
                BitConverter.ToString( bytes, iter, rowSize ) )
            Console.WriteLine( "-" )
        Next iter

        Console.WriteLine( BitConverter.ToString( bytes, iter ) )
        Console.WriteLine( )
    End Sub

    Sub Main( )
        Dim arrayOne as Byte( ) = { _
              0,   0,   0,   0, 128,  63,   0,   0, 112,  65, _
              0, 255, 127,  71,   0,   0, 128,  59,   0,   0, _
            128,  47,  73,  70, 131,   5,  75,   6, 158,  63, _
             77,   6, 158,  63,  80,   6, 158,  63,  30,  55, _
            190, 121, 255, 255, 127, 255, 255, 127, 127,   1, _
              0,   0,   0, 192, 255,   0,   0, 128, 255,   0, _
              0, 128, 127 }

        Dim arrayTwo as Byte( ) = { _
            255, 255, 255,   0,   0,  20,   0,  33,   0,   0, _
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224, _
             13,   0, 202, 154,  59,   0, 143,  91,   0, 170, _
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4, _
             35, 199, 138, 255, 232, 244, 255, 252, 205, 255, _
            255, 129 }

        Dim arrayThree as Byte( ) = { _
              0, 222,   0,   0,   0, 224, 111,  64,   0,   0, _
            224, 255, 255, 255, 239,  65,   0,   0, 131,   0, _
              0,   0, 112,  63,   0, 143,   0, 100,   0,   0, _
            240,  61, 223, 136,  30,  28, 254, 116, 170,   1, _
            250,  89, 140,  66, 202, 192, 243,  63, 251,  89, _
            140,  66, 202, 192, 243,  63, 252,  89, 140,  66, _
            202, 192, 243,  63,  82, 211, 187, 188, 232, 126, _
            255, 255, 255, 244, 255, 239, 127,   1,   0,   0, _
              0,  10,  17,   0,   0, 248, 255,   0,  88,   0, _
             91,   0,   0, 240, 255,   0,   0, 240, 157 }

        Console.WriteLine( "This example of the" & vbCrLf & _
            "  BitConverter.ToString( Byte( ), Integer ) and " & _
            vbCrLf & "  BitConverter.ToString( Byte( ), " & _
            "Integer, Integer ) " & vbCrLf & "methods generates " & _
            "the following output." & vbCrLf )

        WriteMultiLineByteArray( arrayOne, "arrayOne" )
        WriteMultiLineByteArray( arrayTwo, "arrayTwo" )
        WriteMultiLineByteArray( arrayThree, "arrayThree" )
    End Sub 
End Module

' This example of the
'   BitConverter.ToString( Byte( ), Integer ) and
'   BitConverter.ToString( Byte( ), Integer, Integer )
' methods generates the following output.
' 
' arrayOne
' --------
' 00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
' 80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
' BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
' 00-80-7F
' 
' arrayTwo
' --------
' FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
' 0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
' 23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81
' 
' arrayThree
' ----------
' 00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
' 00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
' FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
' CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
' 00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D

Remarks

The elements from array position startIndex to the end of the array are converted.

Applies to

ToString(Byte[], Int32, Int32)

Source:
BitConverter.cs
Source:
BitConverter.cs
Source:
BitConverter.cs

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

public:
 static System::String ^ ToString(cli::array <System::Byte> ^ value, int startIndex, int length);
public static string ToString (byte[] value, int startIndex, int length);
static member ToString : byte[] * int * int -> string
Public Shared Function ToString (value As Byte(), startIndex As Integer, length As Integer) As String

Parameters

value
Byte[]

An array of bytes that includes the bytes to convert.

startIndex
Int32

The starting position within value.

length
Int32

The number of array elements in value to convert.

Returns

String

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

Exceptions

ArgumentNullException

value is null.

ArgumentOutOfRangeException

startIndex or length is less than zero.

-or-

startIndex is greater than zero and is greater than or equal to the length of value.

ArgumentException

The combination of startIndex and length does not specify a position within value; that is, the startIndex parameter is greater than the length of value minus the length parameter.

Examples

The following example uses the ToString method to convert part of a byte array, starting at the specified startIndex and with the specified length, to a string.

// Example of some BitConverter::ToString( ) method overloads.
using namespace System;

// Display a byte array, using multiple lines if necessary.
void WriteMultiLineByteArray( array<unsigned char>^bytes, String^ name )
{
   const int rowSize = 20;
   String^ underLine = "--------------------------------";
   int iter;
   Console::WriteLine( name );
   Console::WriteLine( underLine->Substring( 0, Math::Min( name->Length, underLine->Length ) ) );
   for ( iter = 0; iter < bytes->Length - rowSize; iter += rowSize )
   {
      Console::Write( BitConverter::ToString( bytes, iter, rowSize ) );
      Console::WriteLine( "-" );

   }
   Console::WriteLine( BitConverter::ToString( bytes, iter ) );
   Console::WriteLine();
}

int main()
{
   array<unsigned char>^arrayOne = {0,0,0,0,128,63,0,0,112,65,0,255,127,71,0,0,128,59,0,0,128,47,73,70,131,5,75,6,158,63,77,6,158,63,80,6,158,63,30,55,190,121,255,255,127,255,255,127,127,1,0,0,0,192,255,0,0,128,255,0,0,128,127};
   array<unsigned char>^arrayTwo = {255,255,255,0,0,20,0,33,0,0,0,1,0,0,0,100,167,179,182,224,13,0,202,154,59,0,143,91,0,170,170,170,170,170,170,0,0,232,137,4,35,199,138,255,232,244,255,252,205,255,255,129};
   array<unsigned char>^arrayThree = {0,222,0,0,0,224,111,64,0,0,224,255,255,255,239,65,0,0,131,0,0,0,112,63,0,143,0,100,0,0,240,61,223,136,30,28,254,116,170,1,250,89,140,66,202,192,243,63,251,89,140,66,202,192,243,63,252,89,140,66,202,192,243,63,82,211,187,188,232,126,255,255,255,244,255,239,127,1,0,0,0,10,17,0,0,248,255,0,88,0,91,0,0,240,255,0,0,240,157};
   Console::WriteLine( "This example of the\n"
   "  BitConverter::ToString( unsigned char[ ], int ) and \n"
   "  BitConverter::ToString( unsigned char[ ], int, int ) \n"
   "methods generates the following output.\n" );
   WriteMultiLineByteArray( arrayOne, "arrayOne" );
   WriteMultiLineByteArray( arrayTwo, "arrayTwo" );
   WriteMultiLineByteArray( arrayThree, "arrayThree" );
}

/*
This example of the
  BitConverter::ToString( unsigned char[ ], int ) and
  BitConverter::ToString( unsigned char[ ], int, int )
methods generates the following output.

arrayOne
--------
00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
00-80-7F

arrayTwo
--------
FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81

arrayThree
----------
00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D
*/

// Example of some BitConverter.ToString( ) method overloads.
using System;

class BytesToStringDemo
{
    // Display a byte array, using multiple lines if necessary.
    public static void WriteMultiLineByteArray( byte[ ] bytes,
        string name )
    {
        const int rowSize = 20;
        const string underLine = "--------------------------------";
        int iter;

        Console.WriteLine( name );
        Console.WriteLine( underLine.Substring( 0,
            Math.Min( name.Length, underLine.Length ) ) );

        for( iter = 0; iter < bytes.Length - rowSize; iter += rowSize )
        {
            Console.Write(
                BitConverter.ToString( bytes, iter, rowSize ) );
            Console.WriteLine( "-" );
        }

        Console.WriteLine( BitConverter.ToString( bytes, iter ) );
        Console.WriteLine( );
    }

    public static void Main( )
    {
        byte[ ] arrayOne = {
              0,   0,   0,   0, 128,  63,   0,   0, 112,  65,
              0, 255, 127,  71,   0,   0, 128,  59,   0,   0,
            128,  47,  73,  70, 131,   5,  75,   6, 158,  63,
             77,   6, 158,  63,  80,   6, 158,  63,  30,  55,
            190, 121, 255, 255, 127, 255, 255, 127, 127,   1,
              0,   0,   0, 192, 255,   0,   0, 128, 255,   0,
              0, 128, 127 };

        byte[ ] arrayTwo = {
            255, 255, 255,   0,   0,  20,   0,  33,   0,   0,
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224,
             13,   0, 202, 154,  59,   0, 143,  91,   0, 170,
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4,
             35, 199, 138, 255, 232, 244, 255, 252, 205, 255,
            255, 129 };

        byte[ ] arrayThree = {
              0, 222,   0,   0,   0, 224, 111,  64,   0,   0,
            224, 255, 255, 255, 239,  65,   0,   0, 131,   0,
              0,   0, 112,  63,   0, 143,   0, 100,   0,   0,
            240,  61, 223, 136,  30,  28, 254, 116, 170,   1,
            250,  89, 140,  66, 202, 192, 243,  63, 251,  89,
            140,  66, 202, 192, 243,  63, 252,  89, 140,  66,
            202, 192, 243,  63,  82, 211, 187, 188, 232, 126,
            255, 255, 255, 244, 255, 239, 127,   1,   0,   0,
              0,  10,  17,   0,   0, 248, 255,   0,  88,   0,
             91,   0,   0, 240, 255,   0,   0, 240, 157 };

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

        WriteMultiLineByteArray( arrayOne, "arrayOne" );
        WriteMultiLineByteArray( arrayTwo, "arrayTwo" );
        WriteMultiLineByteArray( arrayThree, "arrayThree" );
    }
}

/*
This example of the
  BitConverter.ToString( byte[ ], int ) and
  BitConverter.ToString( byte[ ], int, int )
methods generates the following output.

arrayOne
--------
00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
00-80-7F

arrayTwo
--------
FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81

arrayThree
----------
00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D
*/

open System

// Display a byte array, using multiple lines if necessary.
let writeMultiLineByteArray (bytes: byte []) (name: string) =
    let rowSize = 20

    printfn $"{name}"
    printfn $"{String('-', name.Length)}"

    let mutable iter = 0
    for i in 0 .. rowSize .. (bytes.Length - rowSize - 1) do
        printfn $"{BitConverter.ToString(bytes, i, rowSize)}-"
        iter <- i
    printfn $"{BitConverter.ToString(bytes, iter + rowSize)}\n"

let arrayOne =
    [| 0uy; 0uy; 0uy; 0uy; 128uy; 63uy; 0uy; 0uy; 112uy; 65uy
       0uy; 255uy; 127uy; 71uy; 0uy; 0uy; 128uy; 59uy; 0uy; 0uy
       128uy; 47uy; 73uy; 70uy; 131uy; 5uy; 75uy; 6uy; 158uy; 63uy
       77uy; 6uy; 158uy; 63uy; 80uy; 6uy; 158uy; 63uy; 30uy; 55uy
       190uy; 121uy; 255uy; 255uy; 127uy; 255uy; 255uy; 127uy; 127uy; 1uy
       0uy; 0uy; 0uy; 192uy; 255uy; 0uy; 0uy; 128uy; 255uy; 0uy
       0uy; 128uy; 127uy |]

let arrayTwo =
    [| 255uy; 255uy; 255uy; 0uy; 0uy; 20uy; 0uy; 33uy; 0uy; 0uy
       0uy; 1uy; 0uy; 0uy; 0uy; 100uy; 167uy; 179uy; 182uy; 224uy
       13uy; 0uy; 202uy; 154uy; 59uy; 0uy; 143uy; 91uy; 0uy; 170uy
       170uy; 170uy; 170uy; 170uy; 170uy; 0uy; 0uy; 232uy; 137uy; 4uy
       35uy; 199uy; 138uy; 255uy; 232uy; 244uy; 255uy; 252uy; 205uy; 255uy
       255uy; 129uy |]

let arrayThree = 
    [| 0uy; 222uy; 0uy; 0uy; 0uy; 224uy; 111uy; 64uy; 0uy; 0uy
       224uy; 255uy; 255uy; 255uy; 239uy; 65uy; 0uy; 0uy; 131uy; 0uy
       0uy; 0uy; 112uy; 63uy; 0uy; 143uy; 0uy; 100uy; 0uy; 0uy
       240uy; 61uy; 223uy; 136uy; 30uy; 28uy; 254uy; 116uy; 170uy; 1uy
       250uy; 89uy; 140uy; 66uy; 202uy; 192uy; 243uy; 63uy; 251uy; 89uy
       140uy; 66uy; 202uy; 192uy; 243uy; 63uy; 252uy; 89uy; 140uy; 66uy
       202uy; 192uy; 243uy; 63uy; 82uy; 211uy; 187uy; 188uy; 232uy; 126uy
       255uy; 255uy; 255uy; 244uy; 255uy; 239uy; 127uy; 1uy; 0uy; 0uy
       0uy; 10uy; 17uy; 0uy; 0uy; 248uy; 255uy; 0uy; 88uy; 0uy
       91uy; 0uy; 0uy; 240uy; 255uy; 0uy; 0uy; 240uy; 157uy |]

printfn "This example of the\n  BitConverter.ToString(byte [], int) and \n  BitConverter.ToString(byte [], int, int) \nmethods generates the following output.\n"

writeMultiLineByteArray arrayOne "arrayOne"
writeMultiLineByteArray arrayTwo "arrayTwo"
writeMultiLineByteArray arrayThree "arrayThree"


// This example of the
//   BitConverter.ToString(byte [], int) and
//   BitConverter.ToString(byte [], int, int)
// methods generates the following output.
//
// arrayOne
// --------
// 00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
// 80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
// BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
// 00-80-7F
//
// arrayTwo
// --------
// FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
// 0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
// 23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81
//
// arrayThree
// ----------
// 00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
// 00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
// FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
// CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
// 00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D

' Example of some BitConverter.ToString( ) method overloads.
Module BytesToStringDemo

    ' Display a Byte array, using multiple lines if necessary.
    Sub WriteMultiLineByteArray( bytes( ) As Byte, name As String )
       
        Const rowSize As Integer = 20 
        Const underLine As String = "--------------------------------"
        Dim iter As Integer

        Console.WriteLine( name )
        Console.WriteLine( underLine.Substring( 0, _
            Math.Min( name.Length, underLine.Length ) ) )

        For iter = 0 To bytes.Length - rowSize - 1 Step rowSize
            Console.Write( _
                BitConverter.ToString( bytes, iter, rowSize ) )
            Console.WriteLine( "-" )
        Next iter

        Console.WriteLine( BitConverter.ToString( bytes, iter ) )
        Console.WriteLine( )
    End Sub

    Sub Main( )
        Dim arrayOne as Byte( ) = { _
              0,   0,   0,   0, 128,  63,   0,   0, 112,  65, _
              0, 255, 127,  71,   0,   0, 128,  59,   0,   0, _
            128,  47,  73,  70, 131,   5,  75,   6, 158,  63, _
             77,   6, 158,  63,  80,   6, 158,  63,  30,  55, _
            190, 121, 255, 255, 127, 255, 255, 127, 127,   1, _
              0,   0,   0, 192, 255,   0,   0, 128, 255,   0, _
              0, 128, 127 }

        Dim arrayTwo as Byte( ) = { _
            255, 255, 255,   0,   0,  20,   0,  33,   0,   0, _
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224, _
             13,   0, 202, 154,  59,   0, 143,  91,   0, 170, _
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4, _
             35, 199, 138, 255, 232, 244, 255, 252, 205, 255, _
            255, 129 }

        Dim arrayThree as Byte( ) = { _
              0, 222,   0,   0,   0, 224, 111,  64,   0,   0, _
            224, 255, 255, 255, 239,  65,   0,   0, 131,   0, _
              0,   0, 112,  63,   0, 143,   0, 100,   0,   0, _
            240,  61, 223, 136,  30,  28, 254, 116, 170,   1, _
            250,  89, 140,  66, 202, 192, 243,  63, 251,  89, _
            140,  66, 202, 192, 243,  63, 252,  89, 140,  66, _
            202, 192, 243,  63,  82, 211, 187, 188, 232, 126, _
            255, 255, 255, 244, 255, 239, 127,   1,   0,   0, _
              0,  10,  17,   0,   0, 248, 255,   0,  88,   0, _
             91,   0,   0, 240, 255,   0,   0, 240, 157 }

        Console.WriteLine( "This example of the" & vbCrLf & _
            "  BitConverter.ToString( Byte( ), Integer ) and " & _
            vbCrLf & "  BitConverter.ToString( Byte( ), " & _
            "Integer, Integer ) " & vbCrLf & "methods generates " & _
            "the following output." & vbCrLf )

        WriteMultiLineByteArray( arrayOne, "arrayOne" )
        WriteMultiLineByteArray( arrayTwo, "arrayTwo" )
        WriteMultiLineByteArray( arrayThree, "arrayThree" )
    End Sub 
End Module

' This example of the
'   BitConverter.ToString( Byte( ), Integer ) and
'   BitConverter.ToString( Byte( ), Integer, Integer )
' methods generates the following output.
' 
' arrayOne
' --------
' 00-00-00-00-80-3F-00-00-70-41-00-FF-7F-47-00-00-80-3B-00-00-
' 80-2F-49-46-83-05-4B-06-9E-3F-4D-06-9E-3F-50-06-9E-3F-1E-37-
' BE-79-FF-FF-7F-FF-FF-7F-7F-01-00-00-00-C0-FF-00-00-80-FF-00-
' 00-80-7F
' 
' arrayTwo
' --------
' FF-FF-FF-00-00-14-00-21-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
' 0D-00-CA-9A-3B-00-8F-5B-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
' 23-C7-8A-FF-E8-F4-FF-FC-CD-FF-FF-81
' 
' arrayThree
' ----------
' 00-DE-00-00-00-E0-6F-40-00-00-E0-FF-FF-FF-EF-41-00-00-83-00-
' 00-00-70-3F-00-8F-00-64-00-00-F0-3D-DF-88-1E-1C-FE-74-AA-01-
' FA-59-8C-42-CA-C0-F3-3F-FB-59-8C-42-CA-C0-F3-3F-FC-59-8C-42-
' CA-C0-F3-3F-52-D3-BB-BC-E8-7E-FF-FF-FF-F4-FF-EF-7F-01-00-00-
' 00-0A-11-00-00-F8-FF-00-58-00-5B-00-00-F0-FF-00-00-F0-9D

Remarks

The length elements from array position startIndex are converted. If length equals zero, the method returns String.Empty.

Applies to