public void remove_order(client c, int id)
        {
            Repairer r = RepairersRecords.Search_Repairer(id);

            foreach (client cl in r.Orders)
            {
                if (c == cl)
                {
                    r.Orders.Remove(cl);
                }
            }
        }
        public void del_repairer(int id)
        {
            Repairer r = RepairersRecords.Search_Repairer(id);

            RepairersRecords.repairers.Remove(r);
        }
        public Repairer Search_Repairer(int id)
        {
            Repairer r = RepairersRecords.Search_Repairer(id);

            return(r);
        }