private void LoadData()
        {
            ClearData();


            foreach (Order order in Order.GetFreeOrders())
            {
                freeOrdersListView.Items.Add(new ListViewItem(new string[] { order.Id.ToString(), order.AddressFrom, order.AddressTo }));
            }

            if (Order.GetAcceptedOrders().Count > 0)
            {
                foreach (Order order in Order.GetAcceptedOrders())
                {
                    acceptedOrdersListView.Items.Add(new ListViewItem(new string[] { order.Id.ToString(), order.AddressFrom, order.AddressTo, order.Driver.Id.ToString() }));
                }
            }

            foreach (Order order in Order.GetInProgressOrders())
            {
                executingOrdersListView.Items.Add(new ListViewItem(new string[] { order.Id.ToString(), order.AddressFrom, order.AddressTo, order.Driver.Id.ToString() }));
            }

            foreach (Driver driver in OnlineDrivers.GetOnlineDrivers())
            {
                driversListView.Items.Add(new ListViewItem(new string[] { driver.Id.ToString(), driver.Status.ToString(), driver.Model }));
            }
        }
        private void SetOrderCompleted(object sender, EventArgs e)
        {
            if (executingOrdersListView.SelectedItems.Count > 0)
            {
                Order selectedOrder = Order.GetInProgressOrders().Where(o => o.Id.ToString() == executingOrdersListView.SelectedItems[0].SubItems[0].Text).First();

                selectedOrder.Status = OrderStatuses.Сompleted;

                selectedOrder.SaveChanges();

                Driver currentDriver = OnlineDrivers.GetOnlineDrivers().Where(d => d.Id.ToString() == executingOrdersListView.SelectedItems[0].SubItems[3].Text).First();

                if (currentDriver != null)
                {
                    currentDriver.Status = DriverStatuses.Free;
                    currentDriver.SaveChanges();
                }
            }
        }
        private void appointDriverBtn_Click(object sender, EventArgs e)
        {
            if (driverComboBox.SelectedIndex != -1)
            {
                Driver currentDriver = OnlineDrivers.GetOnlineDrivers().Where(d => d.Id.ToString() == driverComboBox.SelectedItem.ToString()).First();

                currentOrder.Driver = currentDriver;

                currentDriver.Status = DriverStatuses.NotFree;

                currentDriver.SaveChanges();

                currentOrder.Status = OrderStatuses.Accepted;

                currentOrder.SaveChanges();

                currentOrder.SaveDriver();

                Close();
            }
        }