1: PrintDocument printDocument;

   2: private void InitializeComponent()

   3: {

   4:     ...

   5:  // 这里的printDocument对象可以通过将PrintDocument控件拖放到窗体上来实现，注意要设置该控件的PrintPage事件。

   6:     printDocument=new PrintDocument();

   7:     printDocument.PrintPage += new PrintPageEventHandler (this.printDocument_PrintPage);

   8: ...

   9: }

   1: private void printDocument_PrintPage(object sender,PrintPageEventArgs e)

   2: {

   3:     Graphics g = e.Graphics; //获得绘图对象

   4:     float linesPerPage = 0; //页面的行号

   5:     float yPosition = 0;   //绘制字符串的纵向位置

   6:     int count = 0; //行计数器

   7:     float leftMargin = e.MarginBounds.Left; //左边距

   8:     float topMargin = e.MarginBounds.Top; //上边距

   9:     string line = null; 行字符串

  10:     Font printFont = this.textBox.Font; //当前的打印字体

  11:     SolidBrush myBrush = new SolidBrush(Color.Black);//刷子

  12:     linesPerPage = e.MarginBounds.Height / printFont.GetHeight(g);//每页可打印的行数

  13:  //逐行的循环打印一页

  14:     while(count < linesPerPage && ((line=lineReader.ReadLine()) != null))

  15:     {

  16:        yPosition = topMargin + (count * printFont.GetHeight(g));

  17:        g.DrawString(line, printFont, myBrush, leftMargin, yPosition, new StringFormat());

  18:        count++;

  19:     }

  20:  // 注意：使用本段代码前，要在该窗体的类中定义lineReader对象：

  21:  //       StringReader lineReader = null;

  22:     //如果本页打印完成而line不为空,说明还有没完成的页面,这将触发下一次的打印事件。在下一次的打印中lineReader会

  23:     //自动读取上次没有打印完的内容，因为lineReader是这个打印方法外的类的成员，它可以记录当前读取的位置

  24:     if(line != null)

  25:         e.HasMorePages = true;

  26:     else

  27:  {

  28:         e.HasMorePages = false;

  29:   // 重新初始化lineReader对象，不然使用打印预览中的打印按钮打印出来是空白页

  30:   lineReader = new StringReader(textBox.Text); // textBox是你要打印的文本框的内容

  31:  }

  32: }

   1: protected  void FileMenuItem_PrintSet_Click(object sender,EventArgs e)

   2: {

   3:     PrintDialog printDialog = new PrintDialog();

   4:     printDialog.Document = printDocument;

   5:     printDialog.ShowDialog();

   6: }

   1: protected  void FileMenuItem_PageSet_Click(object sender,EventArgs e)

   2: {

   3:     PageSetupDialog pageSetupDialog = new PageSetupDialog();

   4:     pageSetupDialog.Document = printDocument;

   5:     pageSetupDialog.ShowDialog();

   6: }

   1: protected void FileMenuItem_Print_Click(object sender,EventArgs e)

   2:  {

   3:   PrintDialog printDialog = new PrintDialog();

   4:   printDialog.Document = printDocument;

   5:   lineReader = new StringReader(textBox.Text);

   6:   if (printDialog.ShowDialog() == DialogResult.OK)

   7:   {

   8:       try

   9:       {

  10:         printDocument.Print();

  11:       }

  12:       catch(Exception excep)

  13:       {

  15:              printDocument.PrintController.OnEndPrint(printDocument,new PrintEventArgs());

  16:       }

  17:    }

  18:  }