C# (CSharp) safari_vacation SafariContext.SaveChanges Exemples

Exemple #1

        static void CreateData()
        {
            //Equivalent to INSERT INTO...
            var db = new SafariContext();

            var lion = new SeenAnimals
            {
                Species            = "Lion",
                CountOfTimesSeen   = 4,
                LocationOfLastSeen = "Desert",
            };

            db.Animal.Add(lion);

            var tiger = new SeenAnimals
            {
                Species            = "Tiger",
                CountOfTimesSeen   = 2,
                LocationOfLastSeen = "Jungle"
            };

            db.Animal.Add(tiger);

            var bear = new SeenAnimals
            {
                Species            = "Bear",
                CountOfTimesSeen   = 1,
                LocationOfLastSeen = "Jungle"
            };

            db.Animal.Add(bear);


            db.SaveChanges();
        }

Exemple #2

        static void DeleteData()
        {
            var db           = new SafariContext();
            var deleteAnimoo = db.Animal.FirstOrDefault(animoo => animoo.LocationOfLastSeen == "Desert");

            db.Animal.Remove(deleteAnimoo);

            db.SaveChanges();
        }

Exemple #3

        static void UpdateData()
        {
            var db = new SafariContext();

            db.SaveChanges();
        }