private void toolStripBtExtension_Click(object sender, EventArgs e)
        {
            if (tbSurnameDriver.Text == "" || tbNameDriver.Text == "" || tbPatronimycDriver.Text == "" ||
                tbBrandCar.Text == "" || tbModelCar.Text == "" || cbYearCreated.Text == "" ||
                tbNumberSTSCar.Text == "")
            {
                MessageBox.Show("Сначала заполните/сохраните информацию о клиенте", "Ошибка");
                return;
            }

            if (clbRepairs.Items.Count == 0)
            {
                MessageBox.Show("Добавьте хотя-бы одну ремонтную работу", "Ошибка");
                return;
            }

            List <int>      idCurrentRepairs = db.SearchIdCurrentRepairs(idClient);
            List <int>      idEmployees      = new List <int>();
            List <string[]> strEmployees     = new List <string[]>();
            List <int>      idWorkHours      = new List <int>();
            List <int>      idRepairs        = new List <int>();

            for (int i = 0; i < lbEmployeesRepairs.Items.Count; i++)
            {
                strEmployees.Add(lbEmployeesRepairs.Items[i].ToString().Split(new char[] { ' ' }));
                idEmployees.Add(Convert.ToInt32(strEmployees[i][strEmployees[i].Length - 1]));

                idWorkHours.Add(db.SearchIdWorkHours(idEmployees[i], DateTime.Today.ToString("yyyy-MM-dd")));
                idRepairs.Add(db.SearchIdRepairs(clbRepairs.Items[i].ToString()));
            }

            string timeFinish = "";

            int oldIdExtentionRepair = db.SearchIdExtensionRepair(idCurrentRepairs[0], quantityDays);

            if (toolStripComboBoxQuantityDays.Text != "Количество дней" && Convert.ToInt32(toolStripComboBoxQuantityDays.Text) <= 15)
            {
                quantityDays += Convert.ToInt32(toolStripComboBoxQuantityDays.Text);
            }
            else
            {
                quantityDays++;
            }

            for (int i = 0; i < idCurrentRepairs.Count; i++)
            {
                db.AddExtentionRepairs(oldIdExtentionRepair, idCurrentRepairs[i], quantityDays);
                db.UpdateOrInsertCurrentRepairs(idCurrentRepairs[i], idWorkHours[i], idRepairs[i],
                                                idClient, timeStartRepair, timeFinish, "Продлено");
            }

            toolStripStatusLabelInfoClient.Text = "Всего дней работы: " + quantityDays;
        }