private void button16_Click(object sender, EventArgs e)
 {
     PrintReservationInvoice printReservationInvoice = new PrintReservationInvoice(Model);
     printReservationInvoice.Dock = DockStyle.Fill;
     printReservationInvoice.MdiParent = this.MdiParent;
     printReservationInvoice.Show();
     printReservationInvoice.WindowState = FormWindowState.Maximized;
 }
        private void printInvoiceReservationButton_Click(object sender, EventArgs e)
        {
            PrintReservationInvoice form = new PrintReservationInvoice(Model);

            form.Dock = DockStyle.Fill;
            form.MdiParent = this.MdiParent;
            form.Show();
            form.WindowState = FormWindowState.Maximized;
        }