... MainAdo.ConnectionString = Conn.ConnectionString MainAdo.RecordSource = "SELECT CongVan.MaCongVan, CongVan.TenCongVan, LoaiCongVan.TenLoai, MucDoKhan.MucDoKhan, TrangThai.TrangThai, Format(CongVan.NgayNhan,'dd/mm/yyyy') ... (CongVan INNER JOIN CongVan2TLDinhKem ON CongVan.MaCongVan = CongVan2TLDinhKem.MaCongVan) INNER JOIN TaiLieuDinhKem ON CongVan2TLDinhKem.MaTLDinhKem = TaiLieuDinhKem.MaTLDinhKem Where CongVan.MaCongVan=" ... MaTrangThai" showDataOnCombo cbbNoiGui, "Select TenDonVi from DonVi order by MaDonVi" showDataOnCombo cbbNoiDen, "Select TenDonVi from DonVi order by MaDonVi" showDataOnCombo cbbTenTLDK,...