public void RemoveOne(Solder solder, int quantity)
{
CartLine line = Lines.Where(s => s.Solder.Id == solder.Id).FirstOrDefault();
if (line != null)
{
line.Quantity -= quantity;
}
if (line.Quantity == 0)
{
RemoveItem(line.Solder);
}
}
public void AddItem(Solder solder, int quantity)
{
CartLine line = Lines.Where(s => s.Solder.Id == solder.Id).FirstOrDefault();
if (line == null)
{
Lines.Add(new CartLine
{
Solder = solder,
Quantity = quantity
});
}
else
{
line.Quantity += quantity;
}
}
public void RemoveItem(Solder solder)
{
Lines.RemoveAll(s => s.Solder.Id == solder.Id);
}