public void UpdateItem(SanPham product, int quantity)
{
var line = lineCollection.FirstOrDefault(x => x.Product.Id == product.Id);
if (line != null)
{
line.Quantity = quantity;
}
}
public void AddItem(SanPham product, int quantity)
{
var line = lineCollection.FirstOrDefault(x => x.Product.Id == product.Id);
if (line != null)
{
line.Quantity += quantity;
}
else
{
lineCollection.Add(new CartLine { Product = product, Quantity = quantity });
}
}
public void RemoveLine(SanPham product)
{
lineCollection.RemoveAll(p => p.Product.Id == product.Id);
}