This documentation is archived and is not being maintained.
Uri::FromHex Method
Visual Studio 2010
Gets the decimal value of a hexadecimal digit.
Assembly: System (in System.dll)
Parameters
- digit
- Type: System::Char
The hexadecimal digit (0-9, a-f, A-F) to convert.
Return Value
Type: System::Int32An Int32 value that contains a number from 0 to 15 that corresponds to the specified hexadecimal digit.
| Exception | Condition |
|---|---|
| ArgumentException | digit is not a valid hexadecimal digit (0-9, a-f, A-F). |
The FromHex method converts a character representing a hexadecimal digit (0-9, a-f, A-F) to its decimal value (0 to 15). If digit is not a valid hexadecimal digit, an ArgumentException exception is thrown.
The following example determines whether a character is a hexadecimal character and, if it is, writes the corresponding decimal value to the console.
char testChar = 'e'; if ( Uri::IsHexDigit( testChar ) == true ) { Console::WriteLine( "'{0}' is the hexadecimal representation of {1}", testChar, Uri::FromHex( testChar ) ); } else { Console::WriteLine( "'{0}' is not a hex character", testChar ); } String^ returnString = Uri::HexEscape( testChar ); Console::WriteLine( "The hexadecimal value of '{0}' is {1}", testChar, returnString );
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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