private void hienthi()
{
string macongty = Session["congty"].ToString();
string manguoidung = Session["user"].ToString();
List <Abcon> Captruoc = AbconBUS.LayCapDuyetTruocCuaNhanVienTheoChiTiet(manguoidung);
Abcon capdangduyet = AbconBUS.LayCapDuyetCuaNhanVien(manguoidung);
int buoctruoc = capdangduyet.Abstep - 1;
string nguoiduyet = Session["user"].ToString();
Busers2 suer = UserBUS.TimNhanVienTheoMa(nguoiduyet, macongty);
GridView2.DataSource = db.QryVanBanDenChuaDuyetTheoNguoiDuyet(manguoidung, buoctruoc);
GridView2.DataBind();
//string maphieu = row.Cells[1].Text;
//Session["maphieu"] = maphieu;
}