private void ValidatePassword(string password) { if (TextValidator.IsNullEmptyOrWhiteSpace(password)) { // Password empty or not provided. throw new ValidationException("Password can't be empty!"); } if (!TextValidator.ContainsLowerLetters(password) || !TextValidator.ContainsUpperLetters(password)) { // Password doesn't contain both uppercase and lowercase letters. throw new ValidationException("Password must contain both uppercase and lowecase letters!"); } if (!TextValidator.ContainsNumbers(password) && !TextValidator.ContainsSymbols(password)) { // Pasword doesn't contain neither numbers nor symbols. throw new ValidationException("Password must contain at least one number or symbol!"); } if (!TextValidator.ContainsBetweenXAndYCharacters(password, 8, 32)) { // Password doesn't have between 8 and 32 characters length. throw new ValidationException("Password must contain between 8 and 32 characters!"); } }