BitConverter.ToInt16 BitConverter.ToInt16 BitConverter.ToInt16 BitConverter.ToInt16 Method

Definition

Overloads

ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>)

Converts a read-only byte span into a 16-bit signed integer.

ToInt16(Byte[], Int32) ToInt16(Byte[], Int32) ToInt16(Byte[], Int32) ToInt16(Byte[], Int32)

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

ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>) ToInt16(ReadOnlySpan<Byte>)

Converts a read-only byte span into a 16-bit signed integer.

public:
 static short ToInt16(ReadOnlySpan<System::Byte> value);
public static short ToInt16 (ReadOnlySpan<byte> value);
static member ToInt16 : ReadOnlySpan<byte> -> int16
Public Shared Function ToInt16 (value As ReadOnlySpan(Of Byte)) As Short

Parameters

value
ReadOnlySpan<Byte>

A read-only span containing the bytes to convert.

Returns

A 16-bit signed integer representing the converted bytes.

Exceptions

ToInt16(Byte[], Int32) ToInt16(Byte[], Int32) ToInt16(Byte[], Int32) ToInt16(Byte[], Int32)

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

public:
 static short ToInt16(cli::array <System::Byte> ^ value, int startIndex);
public static short ToInt16 (byte[] value, int startIndex);
static member ToInt16 : byte[] * int -> int16
Public Shared Function ToInt16 (value As Byte(), startIndex As Integer) As Short

Parameters

value
Byte[]

An array of bytes.

startIndex
Int32 Int32 Int32 Int32

The starting position within value.

Returns

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

Exceptions

startIndex equals the length of value minus 1.

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

Examples

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

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

// Convert two byte array elements to a short and display it.
void BAToInt16( array<unsigned char>^bytes, int index )
{
   short value = BitConverter::ToInt16( bytes, index );
   Console::WriteLine( "{0,5}{1,17}{2,10}", index, BitConverter::ToString( bytes, index, 2 ), value );
}

int main()
{
   array<unsigned char>^byteArray = {15,0,0,128,16,39,240,216,241,255,127};
   Console::WriteLine( "This example of the BitConverter::ToInt16( unsigned "
   "char[ ], int ) \nmethod generates the following output. It "
   "converts elements of a \nbyte array to short values.\n" );
   Console::WriteLine( "initial byte array" );
   Console::WriteLine( "------------------" );
   Console::WriteLine( BitConverter::ToString( byteArray ) );
   Console::WriteLine();
   Console::WriteLine( "{0,5}{1,17}{2,10}", "index", "array elements", "short" );
   Console::WriteLine( "{0,5}{1,17}{2,10}", "-----", "--------------", "-----" );
   
   // 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( unsigned char[ ], 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.
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.
Module BytesToInt16Demo

    Const formatter As String = "{0,5}{1,17}{2,10}"
 
    ' Convert two Byte array elements to a Short and display it.
    Sub BAToInt16( bytes( ) As Byte, index As Integer )

        Dim value As Short = BitConverter.ToInt16( bytes, index )

        Console.WriteLine( formatter, index, _
            BitConverter.ToString( bytes, index, 2 ), value )
    End Sub 
       
    Sub Main( )

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

        Console.WriteLine( _
            "This example of the BitConverter.ToInt16( Byte( ), " & _
            "Integer ) " & vbCrLf & "method generates the " & _
            "following output. It converts elements " & vbCrLf & _
            "of a Byte array to Short values." & vbCrLf )
        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 )
    End Sub 
End Module

' This example of the BitConverter.ToInt16( Byte( ), Integer )
' 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

Remarks

The ToInt16 method converts the bytes from index startIndex to startIndex + 1 to an Int16 value. The order of bytes in the array must reflect the endianness of the computer system's architecture; for more information, see the Remarks section of the BitConverter class topic.

See also

Applies to