private void b_add_Click(object sender, EventArgs e)
        {
            #region Clean
            Data.Name = "";
            Data.Type = "";
            Data.Voltage = "";
            Data.cab_Climate = "";
            Data.har = "";
            Data.pol = "";
            Data.sw_Climate = "";
            Data.def = "";
            Data.off_poss = "";
            Data.Branch = "";
            Data.ID_switch = "";
            Data.switch_name = "";
            Data.switch_cur = "";
            Data.har_cur = "";
            Data.sw_p_1 = "";
            Data.sw_p_2 = "";
            Data.sw_p_3 = "";
            Data.ID_cab_1 = "";
            Data.cab_name_1 = "";
            Data.cab_type_1 = "";
            Data.cab_gils_1 = "";
            Data.cab_len_1 = "";
            Data.cab_name_2 = "";
            Data.cab_type_2 = "";
            Data.cab_gils_2 = "";
            Data.cab_len_2 = "";
            Data.pr_name = "";
            Data.pr_p = "";
            Data.pr_i = "";
            Data.pr_type = "";
            Data.koef = "";
            Data.order = "";
            #endregion

            for (int i = 4; i < dataGridView1.Rows.Count; i = i + 4)
            {
                MySqlConnection conn;
                conn = new MySqlConnection("Database=test;Data Source=localhost;User Id=user;Password=1234");
                conn.Open();

                string SQL_String = "UPDATE pr_table SET ord=@ord WHERE ID = '" + dataGridView1.Rows[last_row + i].Cells[0].Value + "'";
                MySqlCommand comm = new MySqlCommand(SQL_String, conn);
                comm.Connection = conn;
                comm.Parameters.AddRange(new MySqlParameter[] {
            new MySqlParameter("ord", MySqlDbType.Int16, 11, "ord")});

                comm.Parameters[0].Value = Convert.ToInt16(dataGridView1.Rows[last_row + i].Cells[3].Value) + 1;

                int rows = comm.ExecuteNonQuery();
                conn.Close();
            }

            dataGridView1.Rows.Clear();
            a_update_project_Load(sender, e);

            a_insert_cabel f_insert_cab = new a_insert_cabel();
            f_insert_cab.Show();
        }
        private void b_change_Click(object sender, EventArgs e)
        {
            #region Fill
            Data.Name = "";
            Data.Type = "";
            Data.Voltage = "";
            Data.cab_Climate = "";
            Data.har = "";
            Data.pol = "";
            Data.sw_Climate = "";
            Data.def = "";
            Data.off_poss = "";
            Data.Branch = "";
            Data.ID_switch = "";
            Data.switch_name = "";
            Data.switch_cur = dataGridView1.Rows[last_row + 2].Cells[4].Value.ToString();
            Data.har_cur = "";
            Data.sw_p_1 = dataGridView1.Rows[last_row + 2].Cells[7].Value.ToString();
            Data.sw_p_2 = dataGridView1.Rows[last_row + 1].Cells[7].Value.ToString();
            Data.sw_p_3 = dataGridView1.Rows[last_row].Cells[7].Value.ToString();
            Data.ID_cab_1 = "";
            Data.cab_name_1 = dataGridView1.Rows[last_row + 1].Cells[8].Value.ToString();
            Data.cab_type_1 = "";
            Data.cab_gils_1 = dataGridView1.Rows[last_row + 1].Cells[10].Value.ToString();
            Data.cab_len_1 = dataGridView1.Rows[last_row + 1].Cells[11].Value.ToString();
            Data.cab_name_2 = dataGridView1.Rows[last_row + 2].Cells[8].Value.ToString();
            Data.cab_type_2 = "";
            Data.cab_gils_2 = dataGridView1.Rows[last_row + 2].Cells[10].Value.ToString();
            Data.cab_len_2 = dataGridView1.Rows[last_row + 2].Cells[11].Value.ToString();
            Data.pr_name = dataGridView1.Rows[last_row + 2].Cells[12].Value.ToString();
            Data.pr_p = dataGridView1.Rows[last_row + 2].Cells[13].Value.ToString();
            Data.pr_i = dataGridView1.Rows[last_row + 2].Cells[14].Value.ToString();
            Data.pr_type = dataGridView1.Rows[last_row + 2].Cells[15].Value.ToString();
            Data.koef = dataGridView1.Rows[last_row + 2].Cells[16].Value.ToString();
            Data.order = "";
            #endregion

            a_insert_cabel f_insert_cab = new a_insert_cabel();
            f_insert_cab.Show();
        }
 private void button13_Click(object sender, EventArgs e)
 {
     Data.ord = 1;
     a_insert_cabel f_insert_cab = new a_insert_cabel();
     f_insert_cab.Show();
 }