private void btnEnr_Click(object sender, EventArgs e) { if (txtNom.Text == "" || txtAdresse.Text == "") { MessageBox.Show("Veuillez remplir les champs.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information); } else { if (btnEnr.Text == "Ajouter") { var dataClient = new Data_Clients(txtNom.Text.Trim(), txtAdresse.Text.Trim()); Fcts_Clients.AjouterClient(dataClient); } else if (btnEnr.Text == "Modifier") { var dataClient = new Data_Clients(txtNom.Text.Trim(), txtAdresse.Text.Trim()); Fcts_Clients.ModifierClient(dataClient, id); } } _parent.Display(); }