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BitConverter.GetBytes Method (Int32)

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

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

Syntax

'Declaration
<SecuritySafeCriticalAttribute> _
Public Shared Function GetBytes ( _
    value As Integer _
) As Byte()

[SecuritySafeCriticalAttribute]
public static byte[] GetBytes(
    int value
)

Parameters

Return Value

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

Examples

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

' Example of the BitConverter.GetBytes( Integer ) method.

Module Example

   Const formatter As String = "{0,16}{1,20}"

   ' Convert an Integer argument to a Byte array and display it.
   Sub GetBytesInt32(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal argument As Integer)

      Dim byteArray As Byte() = BitConverter.GetBytes(argument)
      outputBlock.Text &= String.Format(formatter, argument, _
          BitConverter.ToString(byteArray)) & vbCrLf
   End Sub

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      outputBlock.Text &= String.Format( _
          "This example of the BitConverter.GetBytes( Integer ) " & _
          vbCrLf & "method generates the following " & _
          "output." & vbCrLf) & vbCrLf
      outputBlock.Text &= String.Format(formatter, "Integer", "Byte array") & vbCrLf
      outputBlock.Text &= String.Format(formatter, "-------", "----------") & vbCrLf

      ' Convert Integer values and display the results.
      GetBytesInt32(outputBlock, 0)
      GetBytesInt32(outputBlock, 15)
      GetBytesInt32(outputBlock, -15)
      GetBytesInt32(outputBlock, &H100000)
      GetBytesInt32(outputBlock, -&H100000)
      GetBytesInt32(outputBlock, 1000000000)
      GetBytesInt32(outputBlock, -1000000000)
      GetBytesInt32(outputBlock, Integer.MinValue)
      GetBytesInt32(outputBlock, Integer.MaxValue)
   End Sub
End Module

' This example of the BitConverter.GetBytes( Integer )
' method generates the following output.
' 
'          Integer          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

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

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

   // Convert an int argument to a byte array and display it.
   public static void GetBytesInt32(System.Windows.Controls.TextBlock outputBlock, int argument)
   {
      byte[] byteArray = BitConverter.GetBytes(argument);
      outputBlock.Text += String.Format(formatter, argument,
          BitConverter.ToString(byteArray)) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.Text += String.Format(
          "This example of the BitConverter.GetBytes( int ) " +
          "\nmethod generates the following output.\n") + "\n";
      outputBlock.Text += String.Format(formatter, "int", "byte array") + "\n";
      outputBlock.Text += String.Format(formatter, "---", "----------") + "\n";

      // Convert int values and display the results.
      GetBytesInt32(outputBlock, 0);
      GetBytesInt32(outputBlock, 15);
      GetBytesInt32(outputBlock, -15);
      GetBytesInt32(outputBlock, 0x100000);
      GetBytesInt32(outputBlock, -0x100000);
      GetBytesInt32(outputBlock, 1000000000);
      GetBytesInt32(outputBlock, -1000000000);
      GetBytesInt32(outputBlock, int.MinValue);
      GetBytesInt32(outputBlock, 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
*/

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.