private void buttonSaveCompany_Click(object sender, EventArgs e) { connectionDB.ConnectionMySql(); try { if (textBoxNameCompany.Text != "" && comboBoxSector.Text != "") // create the company into the database { connectionDB.addNewCompany(connectionDB.getIdSectorFromName(comboBoxSector.Text), textBoxNameCompany.Text, textBoxEmailCompany.Text, textBoxNumero.Text, textBoxAddressCompany.Text); MessageBox.Show("Database updated !"); } else { if (textBoxNameCompany.Text == "") { MessageBox.Show("Add at least a company name !", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } else { MessageBox.Show("You must choose a sector !", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } } } catch { MessageBox.Show("Error, database is not updated", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } }