How to verify that the password contains X uppercase letters and Y numbers?

Question

How do I verify in C# that the password contains at least X uppercase letters and at least Y numbers, and the entire string is longer than Z?

Thanks.

Answer 1

This should do it:

public bool CheckPasswordStrength(string password, int x, int y, int z)
{
   return password.Length >= z &&
          password.Count(c => c.IsUpper(c)) >= x &&
          password.Count(c => c.IsDigit(c)) >= y;
}