void Completed(object sende, EventArgs e) { string m_huyen = App.nhomtd; QLThuebaoDomainContext dstb = new QLThuebaoDomainContext(); EntityQuery<rp_tklydocat> Query = dstb.GetRp_tklydocatQuery(); LoadOperation<rp_tklydocat> LoadOp = dstb.Load(Query.OrderBy(p => p.ma_dv), LoadOp_Complete, null); }