Only use selected character groups to generate the password

If you don't want to include all characters in the generated password, but for example only numbers and lowercase characters, you need to combine the various password options by a logical OR. The following example shows this.

using CAM.PasswordGeneratorLibrary;
...
PasswordGenerator pwdGen = 
  new RandomPasswordGenerator(PasswordOptions.Numbers | 
    PasswordOptions.LowercaseCharacters);

Console.WriteLine(pwdGen.Generate(8));