public void SubstractQtyItem(ProductDTO productDto, int quantity)
{
CartLineDTO line = lineCollection
.Where(p => p.Product.ProductID == productDto.ProductID)
.FirstOrDefault();
if (line != null)
{
line.Quantity -= quantity;
}
}
public void AddItem(ProductDTO productDto, int quantity)
{
CartLineDTO line = lineCollection
.Where(p => p.Product.ProductID == productDto.ProductID)
.FirstOrDefault();
if (line == null)
{
lineCollection.Add(new CartLineDTO
{
Product = productDto,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
}
}
