private void btn_save_Click(object sender, EventArgs e) { if (isValidModel() == false) { return; } vehicleModel.Model = tbx_model.Text.Trim(); vehicleModel.CategorySuggestion = Convert.ToInt32(cbx_categories.SelectedValue); vehicleModel.CreatedAt = vehicleModel.IdVehicleModel == 0 ? DateTime.Now : vehicleModel.CreatedAt; vehicleModel.UpdatedAt = DateTime.Now; bool completed = false; if (vehicleModel.IdVehicleModel == 0) { completed = vehicleModel.InsertVehicleModel(vehicleModel); } else { completed = vehicleModel.UpdateVehicleModel(vehicleModel); } if (completed) { Clear(); MessageBox.Show("Operação concluida"); } else { MessageBox.Show("ERRO: Problema ao executar operação no banco de dados"); } }