protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) { dalPDN dal = new dalPDN(); string UserID = Session["user"].ToString(); string GSBH = Session["congty"].ToString(); Label lblMaPhieu = (Label)GridView1.Rows[e.RowIndex].FindControl("lblpdno"); DataTable dt = dal.LayTrangThaiCuaPhieuTheoNguoiDuyet(GSBH, lblMaPhieu.Text.Trim(), UserID); if (dt.Rows.Count != 0) { lblTrangThai1.Text = dt.Rows[0]["YnName"].ToString(); } }