BitConverter.GetBytes Method (UInt64)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Returns the specified 64-bit unsigned integer value as an array of bytes.
This API is not CLS-compliant.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
<CLSCompliantAttribute(False)> _
Public Shared Function GetBytes ( _
value As ULong _
) As Byte()
[CLSCompliantAttribute(false)]
public static byte[] GetBytes(
ulong value
)
Parameters
- value
Type: System.UInt64
The number to convert.
Return Value
Type: array<System.Byte[]
An array of bytes with length 8.
Examples
The following code example converts the bit patterns of UInt64 values to Byte arrays with the GetBytes method.
' Example of the BitConverter.GetBytes( UInt64 ) method.
Imports System.Globalization
Module Example
Const formatter As String = "{0,22}{1,30}"
' Convert a UInt64 argument to a Byte array and display it.
Sub GetBytesUInt64(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal argument As UInt64)
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( UInt64 ) " & _
vbCrLf & "method generates the following " & _
"output." & vbCrLf) & vbCrLf
outputBlock.Text &= String.Format(formatter, "UInt64", "Byte array") & vbCrLf
outputBlock.Text &= String.Format(formatter, "------", "----------") & vbCrLf
' Convert UInt64 values and display the results.
GetBytesUInt64(outputBlock, Convert.ToUInt64(&HFFFFFF))
GetBytesUInt64(outputBlock, Convert.ToUInt64(1000000000))
GetBytesUInt64(outputBlock, Convert.ToUInt64(&H100000000))
GetBytesUInt64(outputBlock, Convert.ToUInt64(&HAAAAAAAAAAAA))
GetBytesUInt64(outputBlock, Convert.ToUInt64(1000000000000000000))
GetBytesUInt64(outputBlock, UInt64.Parse("10000000000000000000"))
GetBytesUInt64(outputBlock, Convert.ToUInt64(0))
GetBytesUInt64(outputBlock, Convert.ToUInt64(Int64.MaxValue))
GetBytesUInt64(outputBlock, UInt64.Parse("18446744073709551615"))
End Sub
End Module
' This example of the BitConverter.GetBytes( UInt64 )
' method generates the following output.
'
' UInt64 Byte array
' ------ ----------
' 16777215 FF-FF-FF-00-00-00-00-00
' 1000000000 00-CA-9A-3B-00-00-00-00
' 4294967296 00-00-00-00-01-00-00-00
' 187649984473770 AA-AA-AA-AA-AA-AA-00-00
' 1000000000000000000 00-00-64-A7-B3-B6-E0-0D
' 10000000000000000000 00-00-E8-89-04-23-C7-8A
' 0 00-00-00-00-00-00-00-00
' 9223372036854775807 FF-FF-FF-FF-FF-FF-FF-7F
' 18446744073709551615 FF-FF-FF-FF-FF-FF-FF-FF
// Example of the BitConverter.GetBytes( ulong ) method.
using System;
class Example
{
const string formatter = "{0,22}{1,30}";
// Convert a ulong argument to a byte array and display it.
public static void GetBytesUInt64(System.Windows.Controls.TextBlock outputBlock, ulong 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( ulong ) " +
"\nmethod generates the following output.\n") + "\n";
outputBlock.Text += String.Format(formatter, "ulong", "byte array") + "\n";
outputBlock.Text += String.Format(formatter, "-----", "----------") + "\n";
// Convert ulong values and display the results.
GetBytesUInt64(outputBlock, 0xFFFFFF);
GetBytesUInt64(outputBlock, 1000000000);
GetBytesUInt64(outputBlock, 0x100000000);
GetBytesUInt64(outputBlock, 0xAAAAAAAAAAAA);
GetBytesUInt64(outputBlock, 1000000000000000000);
GetBytesUInt64(outputBlock, 10000000000000000000);
GetBytesUInt64(outputBlock, ulong.MinValue);
GetBytesUInt64(outputBlock, long.MaxValue);
GetBytesUInt64(outputBlock, ulong.MaxValue);
}
}
/*
This example of the BitConverter.GetBytes( ulong )
method generates the following output.
ulong byte array
----- ----------
16777215 FF-FF-FF-00-00-00-00-00
1000000000 00-CA-9A-3B-00-00-00-00
4294967296 00-00-00-00-01-00-00-00
187649984473770 AA-AA-AA-AA-AA-AA-00-00
1000000000000000000 00-00-64-A7-B3-B6-E0-0D
10000000000000000000 00-00-E8-89-04-23-C7-8A
0 00-00-00-00-00-00-00-00
9223372036854775807 FF-FF-FF-FF-FF-FF-FF-7F
18446744073709551615 FF-FF-FF-FF-FF-FF-FF-FF
*/
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.