C#分页打印，先预览然后打印其中的某一页。在线等着。

Question

小弟最近做一个项目，要用到图像的分页打印，首先要设置打印的页面，然后预览一下，最后选择其中的某一页进行打印。页面设置和预览以及分页功能都能实现，就是点击预览窗口的打印按钮时，打不出来啊。下面是我的代码，其实打印某一页只要能获得当前要打印的页码就行了是不是呢？如何实现啊？ private static int totalPage = 0;//总页数
        private static int currentPage = 0;//当前页
        private static bool start_print = false;
        private void MenuItem_print_Click(object sender, EventArgs e)
        {
            try
            {
                if (pictureBox1.Image == null)
                {
                    MessageBox.Show("当前没有可打印的图像！");
                    return;
                }
                if (pageSetupDialog1.ShowDialog() == DialogResult.OK)//打印设置
                {
                    totalPage = pictureBox1.Image.Height / pageSetupDialog1.PageSettings.Bounds.Height;//总页数
                    printDocument1.PrinterSettings.PrintRange = System.Drawing.Printing.PrintRange.SomePages;
                    printDocument1.PrinterSettings.ToPage = totalPage;
                    
                    if (printPreviewDialog1.ShowDialog()==DialogResult.OK)//打印预览
                    {
                        //printDocument1.Print();
                    }
                }
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.ToString());
            }
        }        private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            int fact_width = Convert.ToInt32(e.PageSettings.Bounds.Width);
            int fact_height = Convert.ToInt32(e.PageSettings.Bounds.Height);
            
            switch (currentPage)
            {
                case 999:
                    {
                        if (!start_print)
                        {
                            //
                            e.HasMorePages = false;
                        }
                        else
                        {
                            e.PageSettings.PrinterSettings.PrintRange = System.Drawing.Printing.PrintRange.Selection;
                            
                        }                          break;
                    }
                default:
                    {
                        Font font = new Font("宋体", 12, FontStyle.Regular);
                        float fontHeight = font.GetHeight(e.Graphics);
                        int font_height = (int)fontHeight;
                        int index = currentPage + 1;
                        string str = "轮胎规格：" + tyreSpecCode + "    图像编号：" + picname + "   打印时间：" + DateTime.Now.ToString() + "   总页数：" + totalPage + "   当前页：" + index;
                        e.Graphics.DrawString(str, font, Brushes.Black, new PointF(0, 0));
                        if (currentPage == 0)
                        {
                            Rectangle dest_rect = new Rectangle(0, font_height, fact_width, fact_height - font_height);
                            Rectangle src_rect = new Rectangle(0, 0, pictureBox1.Image.Width, fact_height - font_height);
                            e.Graphics.DrawImage(pictureBox1.Image, dest_rect, src_rect, GraphicsUnit.Pixel);
                        }
                        else
                        {
                            Rectangle dest_rect = new Rectangle(0, font_height, fact_width, fact_height - font_height);
                            Rectangle src_rect = new Rectangle(0, currentPage * (fact_height - font_height), pictureBox1.Image.Width, fact_height - font_height);
                            e.Graphics.DrawImage(pictureBox1.Image, dest_rect, src_rect, GraphicsUnit.Pixel);
                        }
                        if (index == 1)
                        {
                            e.PageSettings.PrinterSettings.FromPage = 1;
                        }
                        currentPage += 1;
                        e.HasMorePages = true;
                        if (totalPage - currentPage <= 0 && currentPage != 0)
                        {
                            e.PageSettings.PrinterSettings.ToPage = currentPage;
                            currentPage = 999;
                            e.HasMorePages = false;
                            start_print = true;
                            return;
                        }
                        break;
                    }
            } 
        }

Answer 1

点打印按钮弹出的打印对话框中可不可以设置要打印的页码?

Answer 2

你好，我要实现的是打印一张图像，差不多三页，要求是只打印有花纹的那一页，所以只能先预览，然后点打印按钮，打印当前的那一张图像。
感谢您的回复。