Télécharger plusieurs documents PDF en utilisant itextsharp

Question

J'ai une vue arborescente dans laquelle il existe certains jeux de liste de documents et une autre grille contenant les détails du patient. Ce que je dois faire, c'est quand nous sélectionnons docs de treeview (sélectionnez multiple..checkbox activé) et les patients de la grille et cliquez sur un bouton devrait créer tous les documents en utilisant ITEXTSHARP.qui est plusieurs documents sont créés. Je l'ai essayé comme ça,

sur le bouton clic

foreach(TreeNode node in TreeView1.Nodes) 
    { 
     if (node.ChildNodes.Count>0) 
     { 
      for(int i=0 ;i<(node.ChildNodes.Count);i++) 
      { 
       if (node.ChildNodes[i].Checked==true) 
       { 
        string nodevalue = node.ChildNodes[i].Value.ToString(); 

        if (nodevalue=="3") 
        { 
         foreach (GridViewRow row in GridView1.Rows) 
          { 
           if (row.RowType == DataControlRowType.DataRow) 
           { 
            CheckBox chk = row.FindControl("CheckBox1") as CheckBox; 
            if (chk.Checked) 
            { 
             Label lbl_name = row.FindControl("Label1") as Label; 
             Label lbl_dob = row.FindControl("Label3") as Label; 
             pdf_abcd(lbl_name.Text.Trim(), lbl_dob.Text.Trim()); 
            } 
           } 
          } 
        } 


        } 
       } 
      } 
     } 
    } 


} 

et la fonction pdf_abcd est

public void pdf_abcd(string name, string dob) 
{ 
    Phrase hospt_name = new Phrase(); 
    Phrase slogan = new Phrase(); 
    Phrase address = new Phrase(); 
    Phrase pat_name = new Phrase(); 
    Phrase phr_Consent_For_Treatment = new Phrase(); 
    Phrase phr_Professional_Care = new Phrase(); 
    Phrase phr_Consent_For_Treatment_head = new Phrase(); 
    Phrase phr_Professional_Care_head = new Phrase(); 
    Phrase phr_Nursing_Care = new Phrase(); 
    Phrase phr_Nursing_Care_head = new Phrase(); 
    Phrase phr_signtur_line = new Phrase(); 
    Phrase phr_signtur_bigfont = new Phrase(); 
    Phrase phr_signtur_smallfont_line = new Phrase(); 
    Phrase phr_signtur_date_line = new Phrase(); 
    Phrase phr_relationship = new Phrase(); 
    Phrase phr_witness = new Phrase(); 
    Phrase phr_paitient_name = new Phrase(); 
    Phrase phr_paitient_dob = new Phrase(); 

    Paragraph para = new Paragraph(); 
    Paragraph pat_det = new Paragraph(); 
    Paragraph Consent_For_Treatment = new Paragraph(); 
    Paragraph Professional_Care = new Paragraph(); 
    Paragraph Nursing_Care = new Paragraph(); 
    Paragraph Consent_For_Treatment_head = new Paragraph(); 
    Paragraph Professional_Care_head = new Paragraph(); 
    Paragraph Nursing_Care_head = new Paragraph(); 
    Paragraph signatur = new Paragraph(); 
    Paragraph relationship = new Paragraph(); 
    Paragraph witness = new Paragraph(); 
    Paragraph paitient_name_dob = new Paragraph(); 

    Font fntNormalText = FontFactory.GetFont(FontFactory.TIMES, 12, iTextSharp.text.Font.NORMAL); 
    Font fntBoldText = FontFactory.GetFont(FontFactory.TIMES, 12, Font.BOLD); 
    Font fntsmallText = FontFactory.GetFont(FontFactory.TIMES, 8, Font.NORMAL); 
    Font fntverysmallText = FontFactory.GetFont(FontFactory.TIMES, 6, Font.NORMAL); 
    Font fntBoldheadingText = FontFactory.GetFont(FontFactory.TIMES, 10, Font.BOLD); 
    Font fntparaText = FontFactory.GetFont(FontFactory.TIMES, 10, Font.NORMAL); 


    hospt_name = new Phrase("abcd", fntBoldText); 
    slogan = new Phrase(System.Environment.NewLine + "Quality health care here at home", fntNormalText); 
    address = new Phrase(System.Environment.NewLine + "P.O. Box 677", fntsmallText); 
    para.Add(hospt_name); 
    para.Add(slogan); 
    para.Add(address); 

    phr_paitient_name = new Phrase(System.Environment.NewLine + System.Environment.NewLine + System.Environment.NewLine + System.Environment.NewLine + name + "                      " + dob, fntNormalText); 

    pat_name = new Phrase(System.Environment.NewLine + "__________________________________________________________               _______________________________" + System.Environment.NewLine + "Patient's Name                                       D.O.B.", fntsmallText); 

    pat_det.Add(phr_paitient_name); 
    pat_det.Add(pat_name); 


    phr_Consent_For_Treatment_head = new Phrase(System.Environment.NewLine + "Consent For Treatment", fntBoldheadingText); 
    Consent_For_Treatment_head.Add(phr_Consent_For_Treatment_head); 

    phr_Consent_For_Treatment = new Phrase("The undersigned consents to procedures and treatments which may be performed during this hospitalization or on an outpatient or emergency basis, including but not limited to anesthesia, laboratory procedures, medical or surgical treatments, x-ray examination, or other services rendered under the general and specific instructions of the physician, physician's assistant, nurse practitioner or Designee. In order to manage accidental exposure of a health care worker to blood or other bodily fluids, the undersigned further consents to such testing; including but not limited to AIDS, TB, Syphilis, and Hepatitis testing, as may be necessary for protection of the heath care worker.", fntparaText); 
    Consent_For_Treatment.Add(phr_Consent_For_Treatment); 

    phr_Professional_Care_head = new Phrase(System.Environment.NewLine + "Professional Care", fntBoldheadingText); 
    Professional_Care_head.Add(phr_Professional_Care_head); 

    phr_Professional_Care = new Phrase("The attending physician, usually selected by the patient except under unusual or emergency circumstances, is the professional who arranges for the patient's care and treatment Doctors of medicine, including anesthesia provider, pathologists, radiologists, emergency room physicians, osteopathy, podiatry, etc., are independent contractors and are not employees of Val Verde Regional Medical Center. You will receive a separate bill from the physician/anesthesia provider.", fntparaText); 
    Professional_Care.Add(phr_Professional_Care); 

    phr_Nursing_Care_head = new Phrase(System.Environment.NewLine + "Nursing Care", fntBoldheadingText); 
    Nursing_Care_head.Add(phr_Nursing_Care_head); 

    phr_Nursing_Care = new Phrase("The hospital provides general nursing care. Private duty nursing must be arranged by the patient's representative. The hospital is not responsible for and is released from all liabilities for failure to provide such care.", fntparaText); 
    Nursing_Care.Add(phr_Nursing_Care); 


    phr_signtur_line = new Phrase(System.Environment.NewLine + System.Environment.NewLine + "__________________________________________________________________________________________   ________________", fntsmallText); 
    phr_signtur_bigfont = new Phrase(System.Environment.NewLine + "Signature of Patient/Responsible Party/Patient Representative", fntNormalText); 
    phr_signtur_smallfont_line = new Phrase("(If patient unable to sign)", fntverysmallText); 
    phr_signtur_date_line = new Phrase("  Date ", fntNormalText); 

    signatur.Add(phr_signtur_line); 
    signatur.Add(phr_signtur_bigfont); 
    signatur.Add(phr_signtur_smallfont_line); 
    signatur.Add(phr_signtur_date_line); 

    phr_relationship = new Phrase(System.Environment.NewLine + "______________________________________________________________" + System.Environment.NewLine + "Relationship to patient", fntNormalText); 
    relationship.Add(phr_relationship); 


    phr_witness = new Phrase(System.Environment.NewLine + "___________________________________            __________" + System.Environment.NewLine + "Signature of Witness                       Date", fntNormalText); 
    witness.Add(phr_witness); 


    Document Doc = new Document(PageSize.A4, 0, 0, 25, 50); 




    PdfWriter.GetInstance(Doc, new FileStream(Server.MapPath("~/abcd/abcd.pdf"), FileMode.Create)); 

    Doc.Open(); 

    PdfPTable table = new PdfPTable(1); 

    table.TotalWidth = 500f; 

    table.LockedWidth = true; 

    iTextSharp.text.Image logo = iTextSharp.text.Image.GetInstance("~/img/abcd.png"); 
    logo.ScaleAbsolute(30, 30); 

    PdfPCell image_header = new PdfPCell(logo); 
    image_header.HorizontalAlignment = Element.ALIGN_CENTER; 
    image_header.BorderWidth = 0; 

    table.AddCell(image_header); 

    PdfPCell header = new PdfPCell(para); 
    header.HorizontalAlignment = Element.ALIGN_CENTER; 
    header.Colspan = 4; 
    header.BorderWidth = 0; 
    table.AddCell(header); 

    PdfPCell patient = new PdfPCell(pat_det); 
    patient.BorderWidth = 0; 
    table.AddCell(patient); 

    //PdfPCell patientname = new PdfPCell(new Phrase(System.Environment.NewLine + System.Environment.NewLine + "Patient's Name                  D.O.B.")); 
    //patientname.BorderWidth = 0; 
    //table.AddCell(patientname); 

    PdfPCell head_treatment = new PdfPCell(new Phrase(Consent_For_Treatment_head)); 
    head_treatment.BorderWidth = 0; 
    table.AddCell(head_treatment); 

    PdfPCell treatment_content = new PdfPCell(Consent_For_Treatment); 
    treatment_content.BorderWidth = 0; 
    table.AddCell(treatment_content); 



    PdfPCell head_profcare = new PdfPCell(Professional_Care_head); 
    head_profcare.BorderWidth = 0; 
    table.AddCell(head_profcare); 

    PdfPCell profcare_content = new PdfPCell(Professional_Care); 
    profcare_content.BorderWidth = 0; 
    table.AddCell(profcare_content); 




    PdfPCell head_nursing = new PdfPCell(Nursing_Care_head); 
    head_nursing.BorderWidth = 0; 
    table.AddCell(head_nursing); 

    PdfPCell nursing_content = new PdfPCell(Nursing_Care); 
    nursing_content.BorderWidth = 0; 
    table.AddCell(nursing_content); 



    PdfPCell sig = new PdfPCell(signatur); 
    sig.BorderWidth = 0; 
    table.AddCell(sig); 



    PdfPCell raltntopatient = new PdfPCell(relationship); 
    raltntopatient.BorderWidth = 0; 
    table.AddCell(raltntopatient); 



    PdfPCell witnesslines = new PdfPCell(witness); 
    witnesslines.BorderWidth = 0; 
    table.AddCell(witnesslines); 

    Doc.Add(table); 

    Doc.Close(); 
    string path = Server.MapPath("~/abcd/Dabcd.pdf"); 

    ShowPdf(path); 
    //Response.Redirect(Server.MapPath("~/abcd/abcd.pdf")); 


} 

et

private void ShowPdf(string strS) 
{ 
    Response.ClearContent(); 
    Response.ClearHeaders(); 
    Response.ContentType = "application/pdf"; 
    Response.AddHeader("Content-Disposition", "attachment; filename=" + strS); 
    Response.TransmitFile(strS); 
    Response.End(); 
    Response.Flush(); 
    Response.Clear(); 

} 

mais le système ne baisse des charges d'un doc .. Quelqu'un peut-il aider

Answer 1

Je suppose que vous devriez créer un fichier zip qui combine vos fichiers PDF

Answer 2

Si vous reculez et ignorez un peu les PDF pour vous concentrer uniquement sur les requêtes HTTP et les réponses, vous devriez avoir votre réponse. Lorsqu'un navigateur effectue une requête HTTP (le clic de votre bouton), le serveur est autorisé à envoyer une et une seule réponse. Votre code tente (sans succès) d'envoyer plusieurs réponses au navigateur. La première fois que Response.End est appelé le pipeline se termine réellement et le reste de votre code ne s'exécute pas.

La solution consiste à créer un fichier PDF géant en un seul passage, à créer des fichiers PDF individuels et des fichiers mergethem ou create a zip contenant tous les fichiers PDF.

Answer 3

Si vous voulez Open l'file in new tab vous avez différentes méthodes:

Méthode 1:

Response.Clear(); 
Response.ContentType = "application/pdf"; 
Response.AppendHeader("Content-Disposition", "attachment; filename=foo.pdf"); 
Response.TransmitFile(filePath); 
Response.End(); 

Méthode 2:

Process process = new Process(); 
process.StartInfo.UseShellExecute = true; 
process.StartInfo.FileName = outputPdfFile; 
process.Start(); 

Hope this vous aide!