public void reload()
{
frmThongTinSach newform = new frmThongTinSach();
newform.Show();
this.Dispose(false);
}
private void sachToolStripMenuItem_Click(object sender, EventArgs e)
{
frmThongTinSach formtts = new frmThongTinSach();
formtts.Show();
}
private void tslbThongTinS_Click(object sender, EventArgs e)
{
frmThongTinSach formpbs = new frmThongTinSach();
formpbs.Show();
}