Open PDF in browser automatically after download

Question

The downalod from the PDF is executed correctly (is minimized at the bottom corner of the browser).

How to make it open automatically in a new guide ?:

<a href="#" class="download" name="downloaditem" id="downloaditem3" target="_blank"><span style="cursor:pointer"><font color="red"><b>BAIXADA</b></font></span></a>

That doubt is similar to that How to open the Razorpdf report in a separate tab, but I’m using another PDF generator Pechkin, I added the target="_blank" link as above, but does not work.

This is the Action that generates the PDF:

[HttpPost]
        public ActionResult PDFUmDocSelecionado(ProcessamentoRegistros pProcessamentoRegistros)
        {
            try
            {
                string _nomeArquivo = "Meu_Documento_" + DateTime.Now.ToString().Replace(" ", "_").Replace("/", "_").Replace(":", "_") + ".pdf";
                DataTable _Dt = new DataTable();

                _Dt = _IRepositorio.ObterHTML(pProcessamentoRegistros);
                DataRow foundRow = _Dt.Rows[0];

                var pechkin = Factory.Create(new GlobalConfig());
                var pdf = pechkin.Convert(new ObjectConfig()
                                                .SetLoadImages(true).SetZoomFactor(1)
                                             .SetPrintBackground(true)
                                             .SetScreenMediaType(true)
                                             .SetCreateExternalLinks(true)
                                             .SetIntelligentShrinking(true).SetCreateInternalLinks(true)
                                             .SetAllowLocalContent(true), foundRow.ItemArray[0].ToString());
                using (MemoryStream file = new MemoryStream())
                {
                    file.Write(pdf, 0, pdf.Length);
                }

                byte[] arquivo = pdf;

                //Response.Clear();
                //Response.ClearContent();
                //Response.ClearHeaders();
                //Response.ContentType = "application/pdf";
                ////Response.AddHeader("Content-Disposition", string.Format("attachment;filename=arquivo.pdf, size={0}", _pdf.Length));
                //Response.AddHeader("Content-Disposition", string.Format("inline;filename=" + _nomeArquivo + ", size={0}", pdf.Length));
                //Response.BinaryWrite(pdf);
                //Response.Flush();
                //Response.End();

                ////return RedirectToAction("Index", "Documento");
                return File(arquivo, System.Net.Mime.MediaTypeNames.Application.Octet, _nomeArquivo);
            }
            catch
            {
                return RedirectToAction("Index", "ProcessamentoRegistros");
            }
        }

Answer 1

Instead of returning File, return FileStreamResult. How the file is in byte[], will need to do this to pass to MemoryStream:

byte[] arquivo = pdf;
MemoryStream pdfStream = new MemoryStream();
pdfStream.Write(stream.ToArray(), 0, stream.ToArray().Length);
pdfStream.Position = 0;
return new FileStreamResult(pdfStream, "application/pdf");

The code you set as an example would look like this:

[HttpPost]
public ActionResult PDFUmDocSelecionado(ProcessamentoRegistros pProcessamentoRegistros)
{
    try
    {
        string _nomeArquivo = "Meu_Documento_" + DateTime.Now.ToString().Replace(" ", "_").Replace("/", "_").Replace(":", "_") + ".pdf";
        DataTable _Dt = new DataTable();

        _Dt = _IRepositorio.ObterHTML(pProcessamentoRegistros);
        DataRow foundRow = _Dt.Rows[0];

        var pechkin = Factory.Create(new GlobalConfig());
        var pdf = pechkin.Convert(new ObjectConfig()
                                        .SetLoadImages(true).SetZoomFactor(1)
                                     .SetPrintBackground(true)
                                     .SetScreenMediaType(true)
                                     .SetCreateExternalLinks(true)
                                     .SetIntelligentShrinking(true).SetCreateInternalLinks(true)
                                     .SetAllowLocalContent(true), foundRow.ItemArray[0].ToString());
        using (MemoryStream file = new MemoryStream())
        {
            file.Write(pdf, 0, pdf.Length);
        }

        byte[] arquivo = pdf;

        MemoryStream pdfStream = new MemoryStream();
        pdfStream.Write(stream.ToArray(), 0, stream.ToArray().Length);
        pdfStream.Position = 0;
        return new FileStreamResult(pdfStream, "application/pdf");
    }
    catch
    {
        return RedirectToAction("Index", "ProcessamentoRegistros");
    }
}

Below is another example using an excerpt from an answer I gave to another question of yours:

[HttpPost]
public ActionResult OpenPdfFileInBrowser()
{
    var doc = new Document(PageSize.A4.Rotate());
    var stream = new MemoryStream();
    var pw = PdfWriter.GetInstance(doc, stream);
    var minhaStringHTML = @"<HTML><HEAD></HEAD><body><FORM method='post'><table><tr><td>Nome:</td><td>JOÃO DA SILVA</td></tr><tr><td>NOME:</td><td>MARCOS ALVES</td></tr></table></FORM></BODY></HTML>";

    doc.Open();
    using (var srHtml = new StringReader(minhaStringHTML))
    {
        //Convertendo o HTML
        XMLWorkerHelper.GetInstance().ParseXHtml(pw, doc, srHtml);
    }
    doc.Close();

    MemoryStream pdfStream = new MemoryStream();
    pdfStream.Write(stream.ToArray(), 0, stream.ToArray().Length);
    pdfStream.Position = 0;
    return new FileStreamResult(pdfStream, "application/pdf");
}

See working:

I used the same Github project as before and added an example to open the PDF in the browser.

Answer 2

Served here with me, variable "file" bring his name.

  ScriptManager.RegisterStartupScript(Page, Page.GetType(), "popup", "window.open('../files/Reports/" + arquivo + "','_blank')", true);