BitConverter.GetBytes Method (Double)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Returns the specified double-precision floating point value as an array of bytes.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
- Type: System.Double
The number to convert.
The following code example converts the bit patterns of Double values to Byte arrays with the GetBytes method.
// Example of the BitConverter.GetBytes( double ) method. using System; class Example { const string formatter = "{0,25:E16}{1,30}"; // Convert a double argument to a byte array and display it. public static void GetBytesDouble(System.Windows.Controls.TextBlock outputBlock, double 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( double ) " + "\nmethod generates the following output.\n") + "\n"; outputBlock.Text += String.Format(formatter, "double", "byte array") + "\n"; outputBlock.Text += String.Format(formatter, "------", "----------") + "\n"; // Convert double values and display the results. GetBytesDouble(outputBlock, 0.0); GetBytesDouble(outputBlock, 1.0); GetBytesDouble(outputBlock, 255.0); GetBytesDouble(outputBlock, 4294967295.0); GetBytesDouble(outputBlock, 0.00390625); GetBytesDouble(outputBlock, 0.00000000023283064365386962890625); GetBytesDouble(outputBlock, 1.23456789012345E-300); GetBytesDouble(outputBlock, 1.2345678901234565); GetBytesDouble(outputBlock, 1.2345678901234567); GetBytesDouble(outputBlock, 1.2345678901234569); GetBytesDouble(outputBlock, 1.23456789012345678E+300); GetBytesDouble(outputBlock, double.MinValue); GetBytesDouble(outputBlock, double.MaxValue); GetBytesDouble(outputBlock, double.Epsilon); GetBytesDouble(outputBlock, double.NaN); GetBytesDouble(outputBlock, double.NegativeInfinity); GetBytesDouble(outputBlock, double.PositiveInfinity); } } /* This example of the BitConverter.GetBytes( double ) method generates the following output. double byte array ------ ---------- 0.0000000000000000E+000 00-00-00-00-00-00-00-00 1.0000000000000000E+000 00-00-00-00-00-00-F0-3F 2.5500000000000000E+002 00-00-00-00-00-E0-6F-40 4.2949672950000000E+009 00-00-E0-FF-FF-FF-EF-41 3.9062500000000000E-003 00-00-00-00-00-00-70-3F 2.3283064365386963E-010 00-00-00-00-00-00-F0-3D 1.2345678901234500E-300 DF-88-1E-1C-FE-74-AA-01 1.2345678901234565E+000 FA-59-8C-42-CA-C0-F3-3F 1.2345678901234567E+000 FB-59-8C-42-CA-C0-F3-3F 1.2345678901234569E+000 FC-59-8C-42-CA-C0-F3-3F 1.2345678901234569E+300 52-D3-BB-BC-E8-7E-3D-7E -1.7976931348623157E+308 FF-FF-FF-FF-FF-FF-EF-FF 1.7976931348623157E+308 FF-FF-FF-FF-FF-FF-EF-7F 4.9406564584124654E-324 01-00-00-00-00-00-00-00 NaN 00-00-00-00-00-00-F8-FF -Infinity 00-00-00-00-00-00-F0-FF Infinity 00-00-00-00-00-00-F0-7F */
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