Uri.IsHexDigit(Char) Método

Definición

Espacio de nombres:

System

Ensamblado:

System.Runtime.dll

Source:

Uri.cs

Determina si un carácter especificado es un dígito hexadecimal válido.

public:
 static bool IsHexDigit(char character);

public static bool IsHexDigit (char character);

static member IsHexDigit : char -> bool

Public Shared Function IsHexDigit (character As Char) As Boolean

Parámetros

character

Char

Carácter que se va a validar.

Devoluciones

Boolean

true si el carácter es un dígito hexadecimal válido; en caso contrario, false.

Ejemplos

En el ejemplo siguiente se determina si un carácter es un carácter hexadecimal y, si es así, escribe el valor decimal correspondiente en la consola.

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 );

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 hexadecimal character", testChar);

string returnString = Uri.HexEscape(testChar);
Console.WriteLine("The hexadecimal value of '{0}' is {1}", testChar, returnString);

let testChar = 'e'
if Uri.IsHexDigit testChar then
    printfn $"'{testChar}' is the hexadecimal representation of {Uri.FromHex testChar}"
else
    printfn $"'{testChar}' is not a hexadecimal character"

let returnString = Uri.HexEscape testChar
printfn $"The hexadecimal value of '{testChar}' is {returnString}"

Dim testChar As Char = "e"c
If Uri.IsHexDigit(testChar) = True Then
    Console.WriteLine("'{0}' is the hexadecimal representation of {1}", testChar, Uri.FromHex(testChar))
Else
    Console.WriteLine("'{0}' is not a hexadecimal character", testChar)
End If 
Dim returnString As String = Uri.HexEscape(testChar)
Console.WriteLine("The hexadecimal value of '{0}' is {1}", testChar, returnString)

Comentarios

Los dígitos hexadecimales son los dígitos de 0 a 9 y las letras A-F o a-f.