我想在打印面板之前显示打印对话框，然后在打印文档中实现选定的选项。这些选项是像方向，副本数量，页面大小（leter，A4，A3，...）。我如何使用选定的optionS？我的代码现在就像我的Winforms C#项目中的以下内容：

PrintDocument document = new PrintDocument();
PrintDialog dialog = new PrintDialog();
    
private void button2_Click_1(object sender, EventArgs e)
{
    dialog.Document = document;
    if (dialog.ShowDialog() == DialogResult.OK)
    {
    
          PrintDocument doc = new PrintDocument();
          doc.PrintPage += new PrintPageEventHandler(doc_PrintPage);
          doc.Print();
    }
    else
    {
        MessageBox.Show("Print Cancelled!");
    }
    
}
    
private void doc_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
     Panel grd = splitContainer1.Panel2;
     Bitmap bmp = new Bitmap(grd.Width, grd.Height, grd.CreateGraphics());
     grd.DrawToBitmap(bmp, new Rectangle(0, 100, grd.Width, grd.Height));
     System.Drawing.RectangleF bounds = e.PageSettings.PrintableArea;
     float factor = ((float)bmp.Height / (float)bmp.Width);
     e.Graphics.DrawImage(bmp, bounds.Left + 20, bounds.Top, bounds.Width -40, factor * bounds.Width);
}

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实际上，上面的代码显示了打印对话框，但在打印页面中没有实现任何内容。