C# | Uri.FromHex() Method
Uri.FromHex(Char) Method is used to get the decimal value of a hexadecimal digit.
Syntax: public static int FromHex (char digit);
Here, it takes the hexadecimal digit (0-9, a-f, A-F) to convert.Return Value: This method returns an Int32 value that contains a number from 0 to 15 that corresponds to the specified hexadecimal digit.
Exception: This method throws ArgumentException if the digit is not a valid hexadecimal digit (0-9, a-f, A-F).
Below programs illustrate the use of Uri.FromHex(Char) Method:
Example 1:
// C# program to demonstrate the // Uri.FromHex(Char) Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { // Declaring and initializing Char value char value = 'A' ; // Gets the decimal value // of a hexadecimal digit. // using FromHex() method int dec = Uri.FromHex(value); // Displaying the result Console.WriteLine( "Converted int value : {0}" , dec); } } |
Output:
Converted int value : 10
Example 2: For ArgumentException
// C# program to demonstrate the // Uri.FromHex(Char) Method using System; using System.Globalization; class GFG { // Main Method public static void Main() { try { // Declaring and initializing // Char value char value = '.' ; // Gets the decimal value // of a hexadecimal digit. // using FromHex() method int dec = Uri.FromHex(value); // Displaying the result Console.WriteLine( "Converted int value : {0}" , dec); } catch (ArgumentException e) { Console.WriteLine( "Digit should be a valid " + "Hexadecimal digit (0-9, a-f, A-F)." ); Console.Write( "Exception Thrown: " ); Console.Write( "{0}" , e.GetType(), e.Message); } } } |
Output:
Digit should be a valid Hexadecimal digit (0-9, a-f, A-F). Exception Thrown: System.ArgumentException
Reference:
- https://docs.microsoft.com/en-us/dotnet/api/system.uri.fromhex?view=netstandard-2.1
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