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);
}
}
