private void buttonDelete_Click(object sender, EventArgs e) { try { var result = MessageBox.Show("Are you sure ?", "Confirmation", MessageBoxButtons.OKCancel); if (result == DialogResult.OK) { connectionDB.deleteSector(comboBoxSector.Text); } sector_Load(null, null); } catch (Exception) { MessageBox.Show("Error, database is not updated", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }