public void AddItem(Rosette rosette, int quantity)
{
CartLine line = lineCollection
.Where(g => g.Rosette.RosetteId == rosette.RosetteId)
.FirstOrDefault();
if (line == null)
{
lineCollection.Add(new CartLine
{
Rosette = rosette,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
}
}
public void RemoveLine(Rosette rosette)
{
lineCollection.RemoveAll(l => l.Rosette.RosetteId == rosette.RosetteId);
}