Panel printing on multiple pages C#

public class PrintClass
    {
        readonly PrintDocument printdoc1 = new PrintDocument();
        readonly PrintPreviewDialog previewdlg = new PrintPreviewDialog();
        Bitmap MemoryImage;
 
        private readonly Panel panel_;
       
        public PrintClass(Panel pnl)
        {
            panel_ = pnl;
 
            printdoc1.PrintPage += (printdoc1_PrintPage);
            MemoryImage = new Bitmap(pnl.Width, pnl.Height);
        }
       
                private int page = 0;
                private void GetPrintArea(Control pnl)
                {
                        page = 0;
                        MemoryImage = new Bitmap(pnl.Width, pnl.Height);
                        pnl.DrawToBitmap(MemoryImage, new Rectangle(0, 0, pnl.Width, pnl.Height));
                }
 
                private void printdoc1_PrintPage(object sender, PrintPageEventArgs e)
                {
                        var pagearea = e.PageBounds;
                        e.Graphics.DrawImage(MemoryImage, new Rectangle(e.PageBounds.Location, e.PageBounds.Size), new Rectangle(e.PageBounds.Location.X, e.PageBounds.Height * page, e.PageBounds.Width, e.PageBounds.Height), GraphicsUnit.Pixel);
                        e.HasMorePages = e.PageBounds.Height * (page+1) < panel_.Size.Height;
                        page++;
                }
 
        public void Print()
        {
            GetPrintArea(panel_);
            previewdlg.Document = printdoc1;
            previewdlg.ShowDialog();
        }
    }