private void pay_Click(object sender, EventArgs e)
{
if (cashAmount.Value == 0)
{
DisplayForm yikes = new DisplayForm("YIKES!", "Someone call the cops on this shoplifter!");
yikes.ShowDialog();
}
else if (Convert.ToDouble(cashAmount.Value) < Price)
{
DisplayForm whoops = new DisplayForm("Close, but no Cigar", $"Your payment was short {Price - Convert.ToDouble(cashAmount.Value):c}");
whoops.ShowDialog();
}
else
{
DisplayForm yay = new DisplayForm("Change Due", $"Here is your change of {Convert.ToDouble(cashAmount.Value) - Price:c}");
yay.ShowDialog();
}
}
private void button1_Click(object sender, EventArgs e)
{
string prompt = "Transaaction Successful!";
int cvvLength = 0;
bool[] checker = new bool[3];
if (!Regex.IsMatch(textBox1.Text, @"^\d{16}$"))
{
prompt = "Invalid Card!";
checker[0] = false;
}
else
{
if (Regex.IsMatch(textBox1.Text, @"^4[0-9]{12}(?:[0-9]{3})?$"))
{ //Visa Card
cvvLength = 3;
}
else if (Regex.IsMatch(textBox1.Text, @"^3[47][0-9]{13}$"))
{ //American Express Card
cvvLength = 4;
}
else if (Regex.IsMatch(textBox1.Text, @"^3(?:0[0-5]|[68][0-9])[0-9]{11}$"))
{ //Diners Club Card
cvvLength = 3;
}
else if (Regex.IsMatch(textBox1.Text, @"^6(?:011|5[0-9]{2})[0-9]{12}$"))
{ //Discover Card
cvvLength = 3;
}
else if (Regex.IsMatch(textBox1.Text, @"^(?:2131|1800|35\d{3})\d{11}$"))
{ //JCB Card
cvvLength = 3;
}
else if (Regex.IsMatch(textBox1.Text, @"^(?:5[1-5][0-9]{2}|222[1-9]|22[3-9][0-9]|2[3-6][0-9]{2}|27[01][0-9]|2720)[0-9]{12}$"))
{ //MasterCard
cvvLength = 3;
}
else
{
prompt = "Card did not match known card types!";
checker[0] = false;
}
if (Regex.IsMatch(cvvBox.Text, @"\d") && cvvBox.Text.Length != cvvLength && prompt == "")
{
prompt = "CVV was not the correct length!";
checker[1] = false;
}
else if (!Regex.IsMatch(cvvBox.Text, @"\d") && prompt == "")
{
prompt = "CVV was in an incorrect format!";
checker[1] = false;
}
else
{
if (Regex.IsMatch(expBox.Text, @"^(0[1-9]|1[21])/\d\d$"))
{
DateTime exp = new DateTime(); //This whole expiration date is a mess and not working.
exp.AddMonths(int.Parse(expBox.Text.Substring(0, 2)));
exp.AddYears(int.Parse(expBox.Text.Substring(3, 2)) + 2000);
if (true) //exp.CompareTo(DateTime.Now) >= 0
{
prompt = "Transaction Successful!";
}
else
{
prompt = "Expired Card!";
}
}
else
{
if (prompt == "")
{
prompt = "Expired Card!";
}
}
}
}
DisplayForm payment = new DisplayForm("Card", prompt);
payment.ShowDialog();
}