private void btnOrderCart_Click(object sender, EventArgs e)
{
activeCustomer.Orders.Add(firstOrder);
OrderDetail orderDetail = new OrderDetail();
foreach (var item in firstOrder.Cart.LineItems)
{
orderDetail.Loss += item.Product.Cost * item.Quantity;
orderDetail.Profit += item.Price;
}
ODA.AddItem(activeCustomer.Orders.ElementAt(activeCustomer.Orders.Count - 1));
orderDetail.OrderID = activeCustomer.Orders.ElementAt(activeCustomer.Orders.Count - 1).OrderID;
DetailDA.AddItem(orderDetail);
firstOrder = null;
firstOrder = new Order();
firstOrder.Customer = activeCustomer;
firstOrder.CustomerID = activeCustomer.CustomerID;
firstOrder.OrderState = Order.OrderStatus.Open;
btnResetCart_Click(this, null);
}