public void Delete(int Id)
        {
            Vehicle         v = null;
            ProjetasContext _contextInMemory = new ProjetasContext(this.GetDBOptions());

            using (_contextInMemory)
            {
                v = new Vehicle
                {
                    Id          = 2,
                    Brand       = "Nissan",
                    Model       = "Skyline GTR R34",
                    Color       = "Silver",
                    Year        = 1999,
                    Description = "Make movies better",
                    ItsNew      = false
                };

                _contextInMemory.Vehicle.Attach(v);
                _contextInMemory.Vehicle.Remove(v);
                _contextInMemory.Entry(v).State = EntityState.Deleted;
                _contextInMemory.SaveChanges();
            }
            Assert.IsNotNull(v);
        }
        public void Update(Vehicle v)
        {
            ProjetasContext _contextInMemory = new ProjetasContext(this.GetDBOptions());

            v = new Vehicle {
                Id          = 1,
                Brand       = "Dodge",
                Model       = "Charger R/T",
                Color       = "Black",
                Year        = 1970,
                Description = "I can fly!",
                ItsNew      = false
            };

            using (_contextInMemory)
            {
                _contextInMemory.Vehicle.Add(v);

                Vehicle _dbEntity = _contextInMemory.Vehicle.Find(1);
                _contextInMemory.Entry(_dbEntity).CurrentValues.SetValues(v);

                _contextInMemory.SaveChanges();

                Assert.IsTrue(v.Id != -1);
            }
        }
        public static int Update(Vehicle _vehicle)
        {
            using (var context = new ProjetasContext())
            {
                Vehicle _dbEntity = context.Vehicle.Find(_vehicle.Id);
                context.Entry(_dbEntity).CurrentValues.SetValues(_vehicle);

                context.SaveChanges();
                return(_vehicle.Id);
            }
        }
 public static void Delete(IList <Vehicle> _vehicle)
 {
     try
     {
         using (var context = new ProjetasContext())
         {
             foreach (Vehicle c in _vehicle)
             {
                 context.Vehicle.Attach(c);
                 context.Vehicle.Remove(c);
                 context.Entry(c).State = EntityState.Deleted;
             }
             context.SaveChanges();
         }
     }
     catch (Exception dbEx)
     {
         string message = string.Format("{0}", dbEx.Message);
     }
 }