private void ComboBoxCardTypeSelectionChangd(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(m_CreditCard.CardNumber))
{
ICreditCardValidator creditCardValidator = m_CreditCard.GetService(typeof(ICreditCardValidator)) as ICreditCardValidator;
if (creditCardValidator != null)
{
string errorMessage;
bool isValid = false;
isValid = creditCardValidator.ValidateCreditCard(m_CreditCard, out errorMessage);
if (!isValid)
{
labelFeedback.BackColor = Color.LightYellow;
labelFeedback.Text = "Feedback:" + Environment.NewLine + errorMessage;
formErrorProvider.SetError(labelFeedback, errorMessage);
}
else
{
this.labelFeedback.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
labelFeedback.Text = "Feedback: Credit Card details were verified successfully.";
formErrorProvider.Clear();
}
}
}
else
{
this.labelFeedback.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
labelFeedback.Text = string.Empty;
formErrorProvider.Clear();
}
}
private static void ValidateCreditCard(Card card)
{
if (card.CardType != CardType.Unknown)
{
ICreditCardValidator creditCardValidator = card.GetService(typeof(ICreditCardValidator)) as ICreditCardValidator;
if (creditCardValidator != null)
{
string errorMessage;
bool isValid = false;
isValid = creditCardValidator.ValidateCreditCard(card, out errorMessage);
if (!isValid)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"{card.CardType}: {card.CardNumber} (Invalid)");
Console.ForegroundColor = ConsoleColor.Gray;
}
else
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine($"{card.CardType}: {card.CardNumber} (Valid)");
Console.ForegroundColor = ConsoleColor.Gray;
}
}
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine($"Unknown: {card.CardNumber} (Invalid)");
Console.ForegroundColor = ConsoleColor.Gray;
}
}
private void MaskedTextBoxCreditCardNumberValidated(object sender, EventArgs e)
{
//TODO: Made model properties more robust when setting values.
if (!string.IsNullOrEmpty(m_CreditCard.CardNumber.Trim()))
{
ICreditCardValidator creditCardValidator = m_CreditCard.GetService(typeof(ICreditCardValidator)) as ICreditCardValidator;
if (creditCardValidator != null)
{
string errorMessage;
bool isValid = false;
isValid = creditCardValidator.ValidateCreditCard(m_CreditCard, out errorMessage);
if (!isValid)
{
labelFeedback.BackColor = Color.LightYellow;
labelFeedback.Text = "Feedback:" + Environment.NewLine + errorMessage;
formErrorProvider.SetError(labelFeedback, errorMessage);
}
else
{
this.labelFeedback.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
labelFeedback.Text = "Feedback: Credit Card details were verified successfully.";
formErrorProvider.Clear();
}
}
}
else
{
this.labelFeedback.BackColor = System.Drawing.SystemColors.GradientActiveCaption;
labelFeedback.Text = string.Empty;
formErrorProvider.Clear();
}
}
static void Main(string[] args)
{
string creditCardNumber = "4539 0685 4366 1747";
ICreditCardValidator validator = CreditCardValidationFactory.Validator(CreditCardIssuerEnum.Nccc);
string validationResult = validator.IsValid(creditCardNumber) ? "有效" : "無效";
Console.WriteLine($"信用卡卡號[{creditCardNumber}] 是{validationResult}的");
Console.ReadKey();
}
public OrderAcceptor(IDBContext dbContext, ICreditCardValidator creditCardValidator,
IPaymentProcessor paymentProcessor, IEmailSender emailSender, IMessageWriter messageWriter,
IInputReader inputReader)
{
_dbContext = dbContext;
_creditCardValidator = creditCardValidator;
_paymentProcessor = paymentProcessor;
_emailSender = emailSender;
_messageWriter = messageWriter;
_inputReader = inputReader;
}
public void ValidateInValidCreditCardNumbers(string cardNumber, CardType cardType)
{
Card creditCard = new Card()
{
CardNumber = cardNumber, CardType = cardType
};
ICreditCardValidator creditCardValidator = creditCard.GetService(typeof(ICreditCardValidator))
as ICreditCardValidator;
bool isValid = false;
string errorMessage = string.Empty;
if (creditCardValidator != null)
{
isValid = creditCardValidator.ValidateCreditCard(creditCard, out errorMessage);
}
NUnit.Framework.Assert.False(isValid, $"Failed for {creditCard.CardNumber} with type {creditCard.CardType}");
NUnit.Framework.Assert.IsEmpty(errorMessage, $"Failed for {creditCard.CardNumber} with type {creditCard.CardType}");
}
public CreditCardFactory(ICreditCardValidator validator, Tuple <Regex, Type>[] cardDefinitionList)
{
_validator = validator;
_cardDefinitionList = cardDefinitionList;
}
public void Initialize()
{
ICreditCardValidator validator = Substitute.For <ICreditCardValidator>();
_factory = new CreditCardFactory(validator, CARDDEFINITIONS);
}
/// <summary>Create an authorizer using a provided credit card validator.</summary>
/// <param name="creditCardValidator">The ICreditCardValidator instance to use.</param>
public AlwaysAuthorize(ICreditCardValidator creditCardValidator)
{
this.creditCardValidator = creditCardValidator;
}
public void Initialize()
{
_validator = Substitute.For <ICreditCardValidator>();
}
public void SetUp()
{
_uut = new CreditCardValidator();
}
/// <summary>Create an authorizer using an instance of CreditCardValidator.</summary>
public AlwaysAuthorize()
{
creditCardValidator = new CreditCardValidator();
}
public CreditCard(string cardNumber, ICreditCardValidator validator)
{
_cardNumber = cardNumber;
_validator = validator;
}
public MasterCardCreditCard(string cardNumber, ICreditCardValidator validator) : base(cardNumber, validator)
{
}
public AmexCreditCard(string cardNumber, ICreditCardValidator validator) : base(cardNumber, validator)
{
}
public DiscoverCreditCard(string cardNumber, ICreditCardValidator validator) : base(cardNumber, validator)
{
}
public Card()
{
//TODO: Instantiate this sevcie using dependency injection to have loose coupling.
m_CreditCardValidator = new CreditCardValidator();
}
/// <summary>Create an authorizer using a provided credit card validator.</summary>
/// <param name="creditCardValidator">The ICreditCardValidator instance to use.</param>
public AuthorizationService(ICreditCardValidator creditCardValidator)
{
this.creditCardValidator = creditCardValidator;
}
/// <summary>Create an authorizer using an instance of CreditCardValidator.</summary>
public AuthorizationService()
{
creditCardValidator = new CreditCardValidator();
}
public void Initialize()
{
validator = new LuhnValidator();
}
public UnknownCreditCard(string cardNumber, ICreditCardValidator validator) : base(cardNumber, validator)
{
}
