public void AddItem(SANPHAM sp, int quantity)
{
CartItem line = lineCollection
.Where(p => p.Sanpham.ID_SP == sp.ID_SP)
.FirstOrDefault();
if (line == null)
{
lineCollection.Add(new CartItem
{
Sanpham = sp,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
if (line.Quantity <= 0)
{
lineCollection.RemoveAll(l => l.Sanpham.ID_SP == sp.ID_SP);
}
}
}
public void RemoveLine(SANPHAM sp)
{
lineCollection.RemoveAll(l => l.Sanpham.ID_SP == sp.ID_SP);
}