private void bookBreakfastButton_Click(object sender, EventArgs e)
        {
            BookBreakfast form = new BookBreakfast(Model);

            form.Dock = DockStyle.Fill;
            form.MdiParent = this.MdiParent;
            form.Show();
            form.WindowState = FormWindowState.Maximized;
        }
 private void button3_Click(object sender, EventArgs e)
 {
     BookBreakfast bookBreakfast = new BookBreakfast(Model);
     bookBreakfast.Dock = DockStyle.Fill;
     bookBreakfast.MdiParent = this.MdiParent;
     bookBreakfast.Show();
     bookBreakfast.WindowState = FormWindowState.Maximized;
 }