public Student Classgroup_Edit(Student obj)
{
db.Entry(obj).State = EntityState.Modified;
db.SaveChanges();
obj = db.Students.SingleOrDefault(o => o.ID == obj.ID);
return obj;
}
public Student Student_Create(Student obj)
{
obj.ID = Guid.NewGuid();
db.Students.Add(obj);
db.SaveChanges();
obj = db.Students.FirstOrDefault(o => o.ID == obj.ID);
return obj;
}
public Student Classgroup_Delete(Student obj)
{
Student student = db.Students.SingleOrDefault(o => o.ID == obj.ID);
db.Students.Remove(student);
db.SaveChanges();
return student;
}