private void ButtonConfirmPayRental_Click(object sender, EventArgs e)
{
try
{
Decimal change = _rentalController.CalculateChange(numericUpDownTotalPricePayRental.Value,
numericUpDownPayment.Value);
// Set the booking date time, rental code & rental key
DateTime bookingDateTime = DateTime.Now;
string rentalCode = bookingDateTime.ToString("yyyyMMddHHmmssffffff");
string rentalKey = Security.SHA256Hash(rentalCode + _locker.Code + _customer.IcPassport +
_rental.Duration.ToString() + _rental.StartDate.ToString("ddMMyyyy") + _employee.IcPassport);
// Insert the above data into the rental
_rentalController.SetPayRentalData(rentalCode, bookingDateTime, rentalKey);
// Save the rental
_rentalController.SaveRentalData();
// Display the payment result
numericUpDownChange.Value = change;
// Generate the QRCode
Bitmap qrCodeImage = _rentalController.GenerateQR(rentalKey);
pictureBoxQRCodePayRental.Image = qrCodeImage;
// Set Rental Inserted as true
_isInsertComplete = true;
// Hide Confirm & back button
buttonConfirmPayRental.Hide();
buttonBackPayRental.Hide();
// Show OK button
buttonOKPayRental.Show();
}
catch (InvalidUserInputException exception)
{
exception.ShowErrorMessage();
}
}