private void ReturnBookToolStripMenuItem_Click(object sender, EventArgs e)
{
//MessageBox.Show("Return");
String id = studentDataGridView.SelectedCells[0].Value.ToString();
Return_Book return_Book = new Return_Book(id);
return_Book.Show();
}
private void ReturnBookToolStripMenuItem_Click(object sender, EventArgs e)
{
Return_Book return_Book = new Return_Book(null);
return_Book.Show();
}
private void button9_Click(object sender, EventArgs e)
{
Return_Book rb = new Return_Book();
rb.Show();
}