public static string GetUniqueIdentifier(int length)
{
var maxSize = length;
const string AvailableChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
char[] chars = AvailableChars.ToCharArray();
var data = new byte[1];
var crypto = new RNGCryptoServiceProvider();
crypto.GetNonZeroBytes(data);
var size = maxSize;
data = new byte[size];
crypto.GetNonZeroBytes(data);
var result = new StringBuilder(size);
foreach (var b in data)
{
result.Append(chars[b % (chars.Length - 1)]);
}
// Unique identifiers cannot begin with 0-9
if (result[0] >= '0' && result[0] <= '9')
{
return(GetUniqueIdentifier(length));
}
return(result.ToString());
}
public void AddCharGuess(char letter)
{
AvailableChars.Remove(letter);
HangmanGame.GuessLetter(letter);
DetermineImageSrc();
Evaluate();
}
