BitConverter.ToString Method (Byte[], Int32)
Converts the numeric value of each element of a specified subarray of bytes to its equivalent hexadecimal string representation.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Byte[]
An array of bytes.
- startIndex
- Type: System.Int32
The starting position within value.
Return Value
Type: System.StringA 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".
| Exception | Condition |
|---|---|
| ArgumentNullException | value is null. |
| ArgumentOutOfRangeException | startIndex is less than zero or greater than the length of value minus 1. |
The elements from array position startIndex to the end of the array 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 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 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 */
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
