private void newBookshelfToolStripMenuItem_Click(object sender, EventArgs e)
{
BookshelfWindow bookshelf = new BookshelfWindow(database);
bookshelf.MdiParent = this;
bookshelf.Show();
}
public BookshelfManager()
{
InitializeComponent();
//create first view
BookshelfWindow bookshelf = new BookshelfWindow(database);
bookshelf.MdiParent = this;
bookshelf.Show();
}