public bool xoa(string manhom, string tenmanhinh)
{
string mamanhinh = (from a in qltv.QL_ManHinhs
where a.TenManHinh == tenmanhinh
select a.MaManHinh).FirstOrDefault();
QL_ChiTietManHinh delete = qltv.QL_ChiTietManHinhs.Where(p => p.MaNhom.Equals(manhom) && p.MaManHinh.Equals(mamanhinh)).SingleOrDefault();
qltv.QL_ChiTietManHinhs.DeleteOnSubmit(delete);
qltv.SubmitChanges();
return(true);
}
public bool them(string tennhom, string tenmanhinh)
{
string manhom = (from b in qltv.QL_NhomCuaNguoiDungs
where b.TenNhom == tennhom
select b.MaNhom).FirstOrDefault();
string mamanhinh = (from a in qltv.QL_ManHinhs
where a.TenManHinh == tenmanhinh
select a.MaManHinh).FirstOrDefault();
QL_ChiTietManHinh insert = new QL_ChiTietManHinh();
insert.MaNhom = manhom;
insert.MaManHinh = mamanhinh;
qltv.QL_ChiTietManHinhs.InsertOnSubmit(insert);
qltv.SubmitChanges();
return(true);
}
