private void frmBookRec_FormClosing(object sender, FormClosingEventArgs e)
{
this.Hide();
frmBookInfo frmBookIn = new frmBookInfo();
frmBookIn.Show();
}
private void bookToolStripMenuItem_Click(object sender, EventArgs e)
{
frmBookInfo frmBook = new frmBookInfo();
frmBook.Show();
}