public virtual void RemoveItem(Product product, int quantity)
{
var line = CartLineCollection.FirstOrDefault(p => p.Product.ProductId == product.ProductId);
if (line != null)
{
if (quantity >= line.Quantity)
{
CartLineCollection.Remove(line);
}
else
{
line.Quantity -= quantity;
}
}
}
public virtual void AddItem(Product product, int quantity)
{
var line = CartLineCollection.FirstOrDefault(p => p.Product.ProductId == product.ProductId);
if (line == null)
{
CartLineCollection.Add(new CartLine
{
Product = product,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
}
}
public virtual void Clear()
{
CartLineCollection.Clear();
}
public virtual decimal CalculateTotal()
{
return(CartLineCollection.Sum(e => e.Quantity * e.Product.Price));
}
