protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string maLoai = GridView1.Rows[e.RowIndex].Cells[0].Text;
bool result = cn.DeleteLoaiSach(maLoai);
if (result)
{
lblThongBao.Text = "Xóa thành công";
DoDuLieuVaoGridView();
}
else
{
lblThongBao.Text = "Có lỗi";
}
}
