public void RemoveItem(Product product)
{
ProductLine line = lineCollection.Where(p => p.Products.First().ProductID == product.ProductID).FirstOrDefault();
line.Products.RemoveLast();
if (line.Quantity <= 0)
{
lineCollection.Remove(line);
}
}
public void AddItem(Product product)
{
ProductLine line = lineCollection.Where(p => p.Products.First().ProductID == product.ProductID).FirstOrDefault();
if (line == null)
{
lineCollection.Add(new ProductLine(product));
}
else
{
line.Products.AddLast(product);
}
}
