void AddMultipleBooksToolStripMenuItem1Click(object sender, EventArgs e)
{
BatchAddByISBNForm form = new BatchAddByISBNForm(20,Constants.LibraryMode.WISHLIST);
form.MdiParent = this;
form.Show();
}
void AddMultipleBooksToolStripMenuItemClick(object sender, EventArgs e)
{
BatchAddByISBNForm frm = new BatchAddByISBNForm(20,_mode);
frm.MdiParent = this.ParentForm.MdiParent;
frm.Show();
}