public void updateHangHoa(HangHoaBan tmp)
{
foreach (HangHoaBan i in listHangHoa)
{
if (i.id == tmp.id)
{
i.sl = tmp.sl;
if (tmp.sl == 0)
{
listHangHoa.Remove(tmp);
}
return;
}
}
}
public void addHangHoa(HangHoaBan tmp)
{
bool co = false;
foreach (HangHoaBan i in listHangHoa)
{
if (i.id == tmp.id) //Already exists
{
i.sl += tmp.sl;
co = true;
break;
}
}
if (!co)
{
listHangHoa.Add(tmp);
}
}