//returns the total amount for a given year, month and type
public double getAmount(Invoice.InvoiceType type, int year, int month)
{
if (contains(type, year, month))
{
MonthlyInvoice mInvoice = this.MonthlyInvoices.Find(m => m.Month == month && m.Year == year && m.Type == type);
return(mInvoice.Amount);
}
else
{
return(0);
}
}
public void addInvoice(Invoice.InvoiceType type, int year, int month, double amount)
{
lock (this.MonthlyInvoices)
{
if (contains(type, year, month))
{
MonthlyInvoice mInvoice = this.MonthlyInvoices.Find(m => m.Month == month && m.Year == year && m.Type == type);
mInvoice.Amount += amount;
}
else
{
MonthlyInvoice mInvoice = new MonthlyInvoice(type, year, month, amount);
this.MonthlyInvoices.Add(mInvoice);
}
}
}
public void addInvoice(Invoice.InvoiceType type, int year, int month, double amount)
{
lock (this.MonthlyInvoices)
{
if (contains(type, year, month))
{
MonthlyInvoice mInvoice = this.MonthlyInvoices.Find(m => m.Month == month && m.Year == year && m.Type == type);
mInvoice.Amount += amount;
}
else
{
MonthlyInvoice mInvoice = new MonthlyInvoice(type, year, month, amount);
this.MonthlyInvoices.Add(mInvoice);
}
}
}