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BitConverter.ToInt16 Method

Returns a 16-bit signed integer converted from two bytes at a specified position in a byte array.

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

public static short ToInt16 (
	byte[] value,
	int startIndex
)
public static short ToInt16 (
	byte[] value, 
	int startIndex
)
public static function ToInt16 (
	value : byte[], 
	startIndex : int
) : short

Parameters

value

An array of bytes.

startIndex

The starting position within value.

Return Value

A 16-bit signed integer formed by two bytes beginning at startIndex.

Exception typeCondition

ArgumentNullException

value is a null reference (Nothing in Visual Basic).

ArgumentOutOfRangeException

startIndex is less than zero or greater than the length of value minus 2.

The following code example converts elements of Byte arrays to Int16 values with the ToInt16 method.

// Example of the BitConverter.ToInt16 method.
using System;

class BytesToInt16Demo
{
    const string formatter = "{0,5}{1,17}{2,10}";
 
    // Convert two byte array elements to a short and display it.
    public static void BAToInt16( byte[ ] bytes, int index )
    {
        short value = BitConverter.ToInt16( bytes, index );

        Console.WriteLine( formatter, index, 
            BitConverter.ToString( bytes, index, 2 ), value );
    }
       
    public static void Main( )
    {
        byte[ ] byteArray = 
            { 15, 0, 0, 128, 16, 39, 240, 216, 241, 255, 127 };

        Console.WriteLine( 
            "This example of the BitConverter.ToInt16( byte[ ], " +
            "int ) \nmethod generates the following output. It " +
            "converts elements \nof a byte array to short values.\n" );
        Console.WriteLine( "initial byte array" );
        Console.WriteLine( "------------------" );
        Console.WriteLine( BitConverter.ToString( byteArray ) );
        Console.WriteLine( );
        Console.WriteLine( formatter, "index", "array elements", "short" );
        Console.WriteLine( formatter, "-----", "--------------", "-----" );
          
        // Convert byte array elements to short values.
        BAToInt16( byteArray, 1 );
        BAToInt16( byteArray, 0 );
        BAToInt16( byteArray, 8 );
        BAToInt16( byteArray, 4 );
        BAToInt16( byteArray, 6 );
        BAToInt16( byteArray, 9 );
        BAToInt16( byteArray, 2 );
    }
}

/*
This example of the BitConverter.ToInt16( byte[ ], int )
method generates the following output. It converts elements
of a byte array to short values.

initial byte array
------------------
0F-00-00-80-10-27-F0-D8-F1-FF-7F

index   array elements     short
-----   --------------     -----
    1            00-00         0
    0            0F-00        15
    8            F1-FF       -15
    4            10-27     10000
    6            F0-D8    -10000
    9            FF-7F     32767
    2            00-80    -32768
*/

// Example of the BitConverter.ToInt16 method.
import System.*;

class BytesToInt16Demo
{
    private static String formatter = "{0,5}{1,17}{2,10}";

    // Convert two byte array elements to a short and display it.
    public static void BAToInt16(ubyte bytes[], int index)
    {
        short value = BitConverter.ToInt16(bytes, index);
        Console.WriteLine(formatter,(Int32)index, 
            BitConverter.ToString(bytes, index, 2), (Int16)value);
    } //BAToInt16

    public static void main(String[] args)
    {
        ubyte byteArray[] =  { 15, 0, 0, 128, 16, 39, 240, 216, 241, 255, 127 };
        Console.WriteLine("This example of the "
            + "BitConverter.ToInt16( byte[ ], int ) \n"
            + "method generates the following output. " 
            + "It converts elements \nof a byte array to short values.\n");
        Console.WriteLine("initial byte array");
        Console.WriteLine("------------------");
        Console.WriteLine(BitConverter.ToString(byteArray));
        Console.WriteLine();
        Console.WriteLine(formatter, "index", "array elements", "short");
        Console.WriteLine(formatter, "-----", "--------------", "-----");

        // Convert byte array elements to short values.
        BAToInt16(byteArray, 1);
        BAToInt16(byteArray, 0);
        BAToInt16(byteArray, 8);
        BAToInt16(byteArray, 4);
        BAToInt16(byteArray, 6);
        BAToInt16(byteArray, 9);
        BAToInt16(byteArray, 2);
    } //main
} //BytesToInt16Demo

/*
This example of the BitConverter.ToInt16( byte[ ], int )
method generates the following output. It converts elements
of a byte array to short values.

initial byte array
------------------
0F-00-00-80-10-27-F0-D8-F1-FF-7F

index   array elements     short
-----   --------------     -----
    1            00-00         0
    0            0F-00        15
    8            F1-FF       -15
    4            10-27     10000
    6            F0-D8    -10000
    9            FF-7F     32767
    2            00-80    -32768
*/

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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