Beispiel #1
0
        private void confirmButton_Click(object sender, System.EventArgs e)
        {
            // Load engines from the database
            using (AppDatabase db = new AppDatabase())
                using (SQLiteTransaction trans = db.BeginTransaction())
                {
                    try
                    {
                        // Remove all truck engines in the database
                        foreach (TruckEngine eng in Truck.TruckEngines)
                        {
                            db.TruckEngines.Remove(eng);
                        }

                        // Add all engines in the list
                        foreach (ListViewItem item in engineListView2.Items)
                        {
                            Engine      engine   = item.Tag as Engine;
                            TruckEngine truckEng = new TruckEngine()
                            {
                                Engine = engine,
                                Truck  = Truck
                            };
                            db.TruckEngines.Add(truckEng);
                        }

                        trans.Commit();
                    }
                    catch (Exception ex)
                    {
                        trans.Rollback();

                        // Tell the user about the failed validation error
                        MessageBox.Show(ex.Message, "Database Error", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                        return;
                    }
                }

            this.DialogResult = DialogResult.OK;
        }
Beispiel #2
0
        static void Main(string[] args)
        {
            //Herencia
            Engine truckEngine = new TruckEngine(6);

            Utilities.WriteSpeed(truckEngine);
            Engine carEngine = CarEngineBuilder.WithCylinders(2).Build();

            Utilities.WriteSpeed(carEngine);

            //Composicion
            ProtoEngine motorbikeEngine = new MotorbikeEngine(new HyperSpeedBehavior());

            Utilities.WriteSpeed(motorbikeEngine);
            ProtoEngine busEngine = BusEngineBuilder.WithCylinders(4).WithSpeedUpBehavior(new PublicTransportSpeedBehavior()).Build();

            Utilities.WriteSpeed(busEngine);

            busEngine.ChangeSpeedUpBehavior(new HyperSpeedBehavior());
            Utilities.WriteSpeed(busEngine);

            Console.ReadKey();
        }