public string InvoiceAsString(DateTime invoiceDate)
{
if (type.Equals(Type.WithEndDate) && !endDateTime.Equals(invoiceDate))
{
return("");
}
if (type.Equals(Type.WithoutEndDate) &&
!invoiceDate.Day.Equals(DateTime.DaysInMonth(endDateTime.Year, endDateTime.Month)))
{
return("");
}
return(GetBillAsString(BillNumber.GetCurrent(), invoiceDate));
}
// Выставление счёта
public void InvoiceProject(DateTime invoiceDate)
{
string invoice = InvoiceAsString(invoiceDate);
if (invoice.Equals(""))
{
return;
}
string filename = BillNumber.GetCurrent() + ".txt";
File.WriteAllText(filename, invoice);
BillNumber.Next();
}