BitConverter.ToString Method (Byte[], Int32, Int32)
Converts the numeric value of each element of a specified subarray of bytes to its equivalent hexadecimal string representation.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Byte[]
An array of bytes.
- startIndex
- Type: System.Int32
The starting position within value.
- length
- Type: System.Int32
The number of array elements in value to convert.
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 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. |
The length elements from array position startIndex are converted.
If length equals zero, the method returns String.Empty.
The following code example converts the part of a Byte array starting at the specified startIndex with the specified length to a String using 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 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.
