public static Invoice Add(Invoice[] invoice)
{
Invoice inv;
double sum = 0.0;
foreach (var item in invoice)
if (item is ReceivableInvoice)
{
sum += item.InvoiceTotal();
}
else
{
sum -= item.InvoiceTotal();
}
InvoiceDetail[] details = new InvoiceDetail[] { new InvoiceDetail(sum) };
inv = new Invoice(details);
return inv;
}
static void Main(string[] args)
{
InvoiceDetail id1, id2;
id1 = new InvoiceDetail(20D);
id2 = new InvoiceDetail(40D);
OutgoingInvoice in1 = new OutgoingInvoice(new InvoiceDetail[] {id1 });
ReceivableInvoice in2 = new ReceivableInvoice(new InvoiceDetail[] { id2, id1 });
Invoice[] arr = new Invoice[] { in1, in2 };
Invoice in3 = Invoice.Add(arr);
Invoice.Vat = 20;
Invoice[] MyInvoices = new Invoice[] { in1, in3, in2 };
Print action = InvoiceTest.PrintSortedInvoices;
action(MyInvoices);
action = InvoiceTest.PrintGroupedInvoices;
action(MyInvoices);
Console.ReadLine();
}
public Invoice(InvoiceDetail[] items)
{
invoiceItems = items;
invoiceNumber = unique_ID++;
}
public OutgoingInvoice(InvoiceDetail[] items)
: base(items)
{ }
public ReceivableInvoice(InvoiceDetail[] items)
: base(items)
{ }
public InvoiceDetail(InvoiceDetail inv)
: this(inv.DblLineTotal)
{ }
