/// <summary>
/// Calculates and prints out the subtotal, pst and gst charged, taxes, and total
/// </summary>
private void calculate()
{
_carWashInvoice = new CarwashInvoice(decimal.Parse(ConfigurationManager.AppSettings["PST"]),
decimal.Parse(ConfigurationManager.AppSettings["GST"]),
packageItem.Price, fragranceItem.Price);
printSummary();
}
/// <summary>
/// Retrieves the calculated values from the frmCarWash
/// The values are passed into the car wash invoice labels
/// </summary>
/// <param name="carWashInvoice">For referencing the calculated values</param>
public frmCarWashInvoice(CarwashInvoice invoice)
{
InitializeComponent();
this.Text = "Car Wash Invoice";
lblPackagePrice.Text = invoice.PackageCost.ToString("C");
lblFragrancePrice.Text = invoice.FragranceCost.ToString("N2");
lblSubtotal.Text = invoice.Subtotal.ToString("C");
lblTaxes.Text = (invoice.PSTCharged + invoice.GSTCharged).ToString("N2");
lblTotal.Text = invoice.Total.ToString("C");
}