private void barButtonItem13_ItemClick(object sender, ItemClickEventArgs e)
{
Add_Books b = new Add_Books();
b.ShowDialog();
}
private void navBarItem5_LinkClicked(object sender, DevExpress.XtraNavBar.NavBarLinkEventArgs e)
{
Add_Books b = new Add_Books();
b.ShowDialog();
}
private void metroTile8_Click(object sender, EventArgs e)
{
Add_Books a = new Add_Books();
a.ShowDialog();
}