public void SuaLoaidonvi(Loaidonvi ldv)
{
Loaidonvi l = ql.Loaidonvis.SingleOrDefault(t => t.Stt == ldv.Stt);
l.Tenloai = ldv.Tenloai;
l.Mota = ldv.Mota;
ql.Entry(l).State = System.Data.Entity.EntityState.Modified;
ql.SaveChanges();
}
public void ThemLoaidonvi(Loaidonvi ldv)
{
ql.Loaidonvis.Add(ldv);
ql.SaveChanges();
}