/// <summary>
/// Creates a deep clone of the current invoice (all fields and properties)
/// </summary>
public Invoice Clone()
{
new List <InvoiceLine>(this.LineItems.Count);
var copyOfLineItems = LineItems.ConvertAll(i =>
{
return(new InvoiceLine()
{
Cost = i.Cost,
Description = i.Description,
InvoiceLineId = i.InvoiceLineId,
Quantity = i.Quantity
});
});
return(new Invoice()
{
InvoiceNumber = this.InvoiceNumber,
InvoiceDate = this.InvoiceDate,
LineItems = copyOfLineItems
});
}