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Uri::IsHexDigit Method (Char)

.NET Framework (current version)
 

Determines whether a specified character is a valid hexadecimal digit.

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

C#
C++
F#
VB
Copy 
public:
static bool IsHexDigit(
	wchar_t character
)

Parameters

character
Type: System::Char

The character to validate.

Return Value

Type: System::Boolean

A Boolean value that is true if the character is a valid hexadecimal digit; otherwise false.

Hexadecimal digits are the digits 0 to 9 and the letters A-F or a-f.

The following example determines whether a character is a hexadecimal character and, if it is, writes the corresponding decimal value to the console.

C#
C++
VB
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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 );

.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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