public void ChnageTracker() { using (var context = new ObjectOrientedDbContext()) { // retrieve entity var student = context.Students.First(); student.SetLastName("Hoshen1"); DisplayStates(context.ChangeTracker.Entries()); } }
public void Added() { using (var context = new ObjectOrientedDbContext()) { var student = new Student("Shatish", "Samuddrala", "GroupWare", "India"); context.Entry(student).State = EntityState.Added; context.SaveChanges(); var st = context.Students.Where(i => i.FirstName == "Shatish").ToList(); } }
public void UnChnaged() { using (var context = new ObjectOrientedDbContext()) { Student student = context.Students.Single(i => i.Id == 1); student.SetFirstName("Mofaggol"); context.Attach(student); context.Entry(student).State = EntityState.Unchanged; var row = context.SaveChanges(); var st = context.Students.Single(i => i.Id == 1); } }