public void Refresh3() { OpenConnectionCorrect(conn); dataGridView3.DataSource = RequestsSQLT.SelectAllFromBooking(conn); ElementsSettings.SetDefaultSettingsToDGV(dataGridView3); ElementsSettings.HideFirstXColumns(dataGridView3, 2); ElementsSettings.HideLastXColumns(dataGridView3, 2); ElementsSettings.RenameLivingOrBookingDGV(dataGridView3); }