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BitConverter.GetBytes Method (Int32)

Returns the specified 32-bit signed integer value as an array of bytes.

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

public static byte[] GetBytes(
	int value
)

Parameters

value
Type: System.Int32
The number to convert.

Return Value

Type: System.Byte[]
An array of bytes with length 4.

The order of bytes in the array returned by the GetBytes method depends on whether the computer architecture is little-endian or big-endian.

The following code example converts the bit patterns of Int32 values to Byte arrays with the GetBytes method.


// Example of the BitConverter.GetBytes( int ) method.
using System;

class GetBytesInt32Demo
{
    const string formatter = "{0,16}{1,20}";

    // Convert an int argument to a byte array and display it.
    public static void GetBytesInt32( int argument )
    {
        byte[ ] byteArray = BitConverter.GetBytes( argument );
        Console.WriteLine( formatter, argument, 
            BitConverter.ToString( byteArray ) );
    }

    public static void Main( )
    {
        Console.WriteLine( 
            "This example of the BitConverter.GetBytes( int ) " +
            "\nmethod generates the following output.\n" );
        Console.WriteLine( formatter, "int", "byte array" );
        Console.WriteLine( formatter, "---", "----------" );

        // Convert int values and display the results.
        GetBytesInt32( 0 );
        GetBytesInt32( 15 );
        GetBytesInt32( -15 );
        GetBytesInt32( 0x100000 );
        GetBytesInt32( -0x100000 );
        GetBytesInt32( 1000000000 );
        GetBytesInt32( -1000000000 );
        GetBytesInt32( int.MinValue );
        GetBytesInt32( int.MaxValue );
    }
}

/*
This example of the BitConverter.GetBytes( int )
method generates the following output.

             int          byte array
             ---          ----------
               0         00-00-00-00
              15         0F-00-00-00
             -15         F1-FF-FF-FF
         1048576         00-00-10-00
        -1048576         00-00-F0-FF
      1000000000         00-CA-9A-3B
     -1000000000         00-36-65-C4
     -2147483648         00-00-00-80
      2147483647         FF-FF-FF-7F
*/


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

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.

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