private void thôngTinChiTiếtToolStripMenuItem_Click(object sender, EventArgs e)
{
frmChiTietSach f = new frmChiTietSach();
f.path = path;
f.i = index + 1;
f.ShowDialog();
}
private void pbxSach_Click(object sender, EventArgs e)
{
frmChiTietSach f = new frmChiTietSach();
f.path = path;
f.i = index + 1;
f.ShowDialog();
}