BitConverter.GetBytes Method (Int64)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns the specified 64-bit signed integer value as an array of bytes.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Int64
The number to convert.
The following code example converts the bit patterns of Int64 values to Byte arrays with the GetBytes method.
// Example of the BitConverter.GetBytes( long ) method. using System; class Example { const string formatter = "{0,22}{1,30}"; // Convert a long argument to a byte array and display it. public static void GetBytesInt64(System.Windows.Controls.TextBlock outputBlock, long 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( long ) " + "\nmethod generates the following output.\n") + "\n"; outputBlock.Text += String.Format(formatter, "long", "byte array") + "\n"; outputBlock.Text += String.Format(formatter, "----", "----------") + "\n"; // Convert long values and display the results. GetBytesInt64(outputBlock, 0); GetBytesInt64(outputBlock, 0xFFFFFF); GetBytesInt64(outputBlock, -0xFFFFFF); GetBytesInt64(outputBlock, 1000000000); GetBytesInt64(outputBlock, -1000000000); GetBytesInt64(outputBlock, 0x100000000); GetBytesInt64(outputBlock, -0x100000000); GetBytesInt64(outputBlock, 0xAAAAAAAAAAAA); GetBytesInt64(outputBlock, -0xAAAAAAAAAAAA); GetBytesInt64(outputBlock, 1000000000000000000); GetBytesInt64(outputBlock, -1000000000000000000); GetBytesInt64(outputBlock, long.MinValue); GetBytesInt64(outputBlock, long.MaxValue); } } /* This example of the BitConverter.GetBytes( long ) method generates the following output. long byte array ---- ---------- 0 00-00-00-00-00-00-00-00 16777215 FF-FF-FF-00-00-00-00-00 -16777215 01-00-00-FF-FF-FF-FF-FF 1000000000 00-CA-9A-3B-00-00-00-00 -1000000000 00-36-65-C4-FF-FF-FF-FF 4294967296 00-00-00-00-01-00-00-00 -4294967296 00-00-00-00-FF-FF-FF-FF 187649984473770 AA-AA-AA-AA-AA-AA-00-00 -187649984473770 56-55-55-55-55-55-FF-FF 1000000000000000000 00-00-64-A7-B3-B6-E0-0D -1000000000000000000 00-00-9C-58-4C-49-1F-F2 -9223372036854775808 00-00-00-00-00-00-00-80 9223372036854775807 FF-FF-FF-FF-FF-FF-FF-7F */
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