// phân quyền
public void updateLop(Lop lop)
{
Lop clss = (from l in db.Lops
where l.MaLop == lop.MaLop
select l).Single();
if (clss != null)
{
clss.GVCN = lop.GVCN;
clss.GVTG = lop.GVTG;
db.SaveChanges();
}
}
public void deleteLop(Lop lop)
{
db.Lops.Remove(lop);
db.SaveChanges();
}
public void insertLop(Lop lop)
{
db.Lops.Add(lop);
db.SaveChanges();
}
