C# Uri FromHex

Description

Uri FromHex gets the decimal value of a hexadecimal digit.

Syntax

Uri.FromHex has the following syntax.

public static int FromHex(
  char digit
)

Parameters

Uri.FromHex has the following parameters.

• digit - The hexadecimal digit (0-9, a-f, A-F) to convert.

Returns

Uri.FromHex method returns An Int32 value that contains a number from 0 to 15 that corresponds to the specified hexadecimal digit.

Example

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

/*  w  ww  . j  a v a 2 s .co m*/
using System;
public class MainClass{
  public static void Main(String[] argv){  
    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);

  }
}
    

The code above generates the following result.