基于C#中使用的坐标，使用System.Drawing.Printing在多个页面上打印图形

使用System.Drawing.Printing，我想在打印文档上打印一组行。但问题是，它会打印第一页上的每一行，坐标是多少，如果我画一张图像，它会在一页上打印，无论它有多大

以下是我为在多页上打印文本所做的操作：

protected void ThePrintDocument_PrintPage (object sender, System.Drawing.Printing.PrintPageEventArgs ev)
{
  float linesPerPage = 0;
  float yPosition = 0;
  int count = 0;
  float leftMargin = ev.MarginBounds.Left;
  float topMargin = ev.MarginBounds.Top;
  string line = null;
  Font printFont = this.richTextBox1.Font;
  SolidBrush myBrush = new SolidBrush(Color.Black);
  // Work out the number of lines per page, using the MarginBounds.
  linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics);
  // Iterate over the string using the StringReader, printing each line.
  while(count < linesPerPage && ((line=myReader.ReadLine()) != null)) 
  {
    // calculate the next line position based on 
    // the height of the font according to the printing device
    yPosition = topMargin + (count * printFont.GetHeight(ev.Graphics));
    // draw the next line in the rich edit control
    ev.Graphics.DrawString(line, printFont, myBrush, leftMargin, yPosition, new StringFormat());
    count++;
  }
  // If there are more lines, print another page.
  if(line != null)
    ev.HasMorePages = true;
  else
    ev.HasMorePages = false;
  myBrush.Dispose();
}

我应该做什么才能在多页上打印行，即以下代码应该在两页上打印，因为行的长度是1400，打印文档的长度是1100，所以行的剩余300应该打印在下一页上

protected void ThePrintDocument_PrintPage (object sender, System.Drawing.Printing.PrintPageEventArgs ev)
{
    Pen P1 = new Pen(Brushes.Violet, 5);
    ev.Graphics.DrawLine(P1, new Point(0,0), new Point(500,1400));
}