// добавление элемента в корзину
public void AddItem(int id, GoodsLine goods, int quantity)
{
CartLine line = lineCollection
.Where(g => g.Goods.GoodsId == goods.GoodsId)
.FirstOrDefault();
if (line == null)
{
lineCollection.Add(new CartLine
{
CartId = id,
Goods = goods,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
}
}
public void RemoveLine(GoodsLine goods)
{
lineCollection.RemoveAll(l => l.GoodsId == goods.GoodsId);
}
