private void LoadDanhSachSanPhamKHMua() { balKhachHang = new BAKhachHang(); try { if (balKhachHang.LayDSSPKHDaMua().Tables[0].Rows.Count != 0) { this.dgvDsSpKhMua.DataSource = balKhachHang.LayDSSPKHDaMua().Tables[0]; } } catch (Exception error) { MessageBox.Show(error.Message, "Loi", MessageBoxButtons.OK, MessageBoxIcon.Error); } }