生成后立即打开 PDF 文件

Question

我想在程序生成 PDF 后打开它。我知道它已经在互联网上得到了解答，但我找不到可以解决我的问题的令人满意的答案。这是我生成 PDF 时的代码。

 protected void btnPdf_Click(object sender, EventArgs e)

{

    GridViewRow rows = TraineeGrid.SelectedRow;

    Label varName = (Label)rows.FindControl("lbName");

    string name = varName.Text;

    Label varCourse = (Label)rows.FindControl("lbCourse");

    string course = varCourse.Text;

    Label varCertNum = (Label)rows.FindControl("lbCertNum");

    string certNumber = varCertNum.Text;

    Label varEndDate = (Label)rows.FindControl("lbEndDate");

    string endDate = varEndDate.Text;

    DateTime date = DateTime.Parse(endDate);

    string finalEDate = date.ToString("MMMM dd, yyyy");

    Label varStartDate = (Label)rows.FindControl("lbStartDate");

    string startDate = varStartDate.Text;

    DateTime date1 = DateTime.Parse(startDate);

    string finalSDate = date1.ToString("MMMM dd, yyyy");

    try

    {

        string inputCertificate = "D:\\Intern\\BASSWeb\\Certificates\\InitialCertificate.pdf";

        string outputCertificate = "D:\\Intern\\BASSWeb\\Certificates\\" + course + "_" + name + ".pdf";

        string newFileName = getNextFileName(outputCertificate);

        // open the reader

        PdfReader reader = new PdfReader(inputCertificate);

        Rectangle size = reader.GetPageSizeWithRotation(1);

        Document document = new Document();

        // open the writer

        FileStream fs = new FileStream(outputCertificate, FileMode.Create, FileAccess.Write);

        PdfStamper stamp = new PdfStamper(reader, fs);

        PdfContentByte cb = stamp.GetOverContent(1);

        var pageSize = reader.GetPageSize(1);

        ColumnText ct = new ColumnText(cb);

        Font font = FontFactory.GetFont(FontFactory.HELVETICA_BOLD, 45, iTextSharp.text.Color.BLACK);

        ct.SetSimpleColumn(28f, 100f, 600f, 305f);

        Paragraph certText = new Paragraph(new Phrase(20, name, font));

        ct.AddElement(certText);

        ct.Go();

我也尝试过，Response.Redirect但仍然没有做任何事情。

Answer 1

确保关闭 Pdf，然后执行Process.Start(outputCertificate).为此你需要 using System.Diagnostics另外，我看不出你这样做的原因document.Open();，那肯定必须关闭才能使用Process.Start();