private void FillClientsNameByID_CB()
        {
            String phone = _queries.ClientPhoneById(CB_ClientKey.SelectedItem.ToString());

            if (phone.Length > 0)
            {
                TB_PhoneNumber.Text = phone;
            }
            else
            {
                TB_PhoneNumber.Text = String.Empty;
            }
            CB_Client.Text = _queries.ClientsNameByID(CB_ClientKey.SelectedItem.ToString());
        }