using System;
using System.IO;
class GetCharExample
{
public static void Main()
{
char[] invalidFileChars = Path.GetInvalidFileNameChars();
Console.WriteLine("The following characters are invalid in a filename:");
ShowChars(invalidFileChars);
}
public static void ShowChars(char[] charArray)
{
foreach (char someChar in charArray)
{
Console.WriteLine("{0:c},\t{1:X4}", someChar, (int)someChar);
}
}
}