private void editMatchListBox_SelectedIndexChanged(object sender, EventArgs e) { TextBox[] idBoxesAway = { PlayerID1Away, PlayerID2Away, PlayerID3Away, PlayerID4Away, PlayerID5Away, PlayerID6Away, PlayerID7Away, PlayerID8Away, PlayerID9Away, PlayerID10Away, PlayerID11Away }; TextBox[] noBoxesAway = { PlayerNo1Away, PlayerNo2Away, PlayerNo3Away, PlayerNo4Away, PlayerNo5Away, PlayerNo6Away, PlayerNo7Away, PlayerNo8Away, PlayerNo9Away, PlayerNo10Away, PlayerNo11Away }; ComboBox[] positionBoxesAway = { PlayerPosition1Away, PlayerPosition2Away, PlayerPosition3Away, PlayerPosition4Away, PlayerPosition5Away, PlayerPosition6Away, PlayerPosition7Away, PlayerPosition8Away, PlayerPosition9Away, PlayerPosition10Away, PlayerPosition11Away }; MaskedTextBox[] goalBoxesAway = { Goals1Away, Goals2Away, Goals3Away, Goals4Away, Goals5Away, Goals6Away, Goals7Away, Goals8Away, Goals9Away, Goals10Away, Goals11Away }; TextBox[] idBoxesHome = { PlayerID1Home, PlayerID2Home, PlayerID3Home, PlayerID4Home, PlayerID5Home, PlayerID6Home, PlayerID7Home, PlayerID8Home, PlayerID9Home, PlayerID10Home, PlayerID11Home }; TextBox[] noBoxesHome = { PlayerNo1Home, PlayerNo2Home, PlayerNo3Home, PlayerNo4Home, PlayerNo5Home, PlayerNo6Home, PlayerNo7Home, PlayerNo8Home, PlayerNo9Home, PlayerNo10Home, PlayerNo11Home }; ComboBox[] positionBoxesHome = { PlayerPosition1Home, PlayerPosition2Home, PlayerPosition3Home, PlayerPosition4Home, PlayerPosition5Home, PlayerPosition6Home, PlayerPosition7Home, PlayerPosition8Home, PlayerPosition9Home, PlayerPosition10Home, PlayerPosition11Home }; MaskedTextBox[] goalBoxesHome = { Goals1Home, Goals2Home, Goals3Home, Goals4Home, Goals5Home, Goals6Home, Goals7Home, Goals8Home, Goals9Home, Goals10Home, Goals11Home }; try { if (!connectionWithDatabase.isConnected()) { connectionWithDatabase.OpenConnection(); object[] tab = new object[2]; tab = connectionWithDatabase.returnIdOfTeams(editMatchListBox); connectionWithDatabase.loadMatch(matchDateBox, matchTimeBox, competitionID, editMatchListBox); connectionWithDatabase.loadPlayersToBoxes(tab[0], idBoxesHome, noBoxesHome, positionBoxesHome, goalBoxesHome, editMatchListBox); connectionWithDatabase.loadPlayersToBoxes(tab[1], idBoxesAway, noBoxesAway, positionBoxesAway, goalBoxesAway, editMatchListBox); } } catch (Exception es) { MessageBox.Show("Error 404 in adding Team. Check DataBaseConnection \r\n" + es.Message + "\r\n" + es.InnerException.Message); } finally { connectionWithDatabase.CloseConnection(); } }