Ramdom Password Generation : Using C#

The following C# code will generate a random number without repeating character

public static string GetRandomPassword(int passwordLength)

{

string allowedChars = "$%#@!*abcdefghijklmnopqrstuvwxyz1234567890?~ABCDEFGHIJKLMNOPQRSTUVWXYZ^&";

string newPassword = "";

Random randomNumber = new Random();

for (int i = 0; i <>

{

int charIndex = randomNumber.Next(allowedChars.Length);

//Don't Allow Repetation of Characters

if (!newPassword.Contains(allowedChars[charIndex] + ""))

newPassword += allowedChars[charIndex];

else

i--;

}

return newPassword;

}