protected void gvDSLoaiKhach_RowUpdating(object sender, GridViewUpdateEventArgs e) { GridViewRow row = gvDSLoaiKhach.Rows[e.RowIndex]; TextBox txt2nd_column = row.Cells[1].Controls[0] as TextBox; int a = Int32.Parse(gvDSLoaiKhach.DataKeys[e.RowIndex].Value.ToString()); string b = txt2nd_column.Text; LoaiKhachHangDAO lkdao = new LoaiKhachHangDAO(); lkdao.SuaLoaiKhach(a, b); e.Cancel = true; gvDSLoaiKhach.EditIndex = -1; HienThiDanhSach(); }