create and open .pdf file in Iframe

Question

User-1651858287 posted

I am trying to create a file in iframe but having a problem.

string Path = Server.MapPath("~/HOD");

 

 

                

                try

                {

 

                    //if file exist delete

                    if (File.Exists(Path + "/" + strip + ".pdf"))

                    {

                        File.Delete(Path + "/" + strip + ".pdf");

 

                    }

 

                

 

                    FileStream fs = new FileStream(Path + "/" + strip + ".pdf", FileMode.Create, FileAccess.Write, FileShare.None);

 

                    Rectangle rec2 = new Rectangle(PageSize.A4);

 

                   

 

 

                    Document doc = new Document(rec2, 10, 10, 10, 10);

 

                    doc.Add(new Paragraph("What is your view of the type of support and feedback you received from your Supervisor/Head of Section/Head of Department (with respect to the motivation, guidance and coaching provided during the assessment period)? ", FontFactory.GetFont("Arial", 8, Font.BOLD)));

                    doc.Add(new Paragraph("\n"));

 

                    

 

                      PdfWriter writer = PdfWriter.GetInstance(doc, fs);

 

 

                    

                    doc.Close();

                    writer.Close();

                    fs.Close();

 

                   

 

                }

                

                 catch

                {

                    Response.Write("File could not be created. Please contact administrator");

                }

 

                string pa = Path + "/" + strip + ".pdf";

                string path = ResolveClientUrl(pa);

 

                //load file in frame

              

                Iframe1.Attributes["src"] = pa;

                string encodedPath = System.Web.HttpUtility.JavaScriptStringEncode(path, true);

            

Answer 1

User288213138 posted

Hi sweetSteal,

I tried running your code, found some problems and modified it.

If you want to create a pdf file, you first use the Document.open() method to open a document to be written, then create a Write instance for the Document.

The iframe src should be a relative path, not an absolute path,because you can't directly access the files in the c: drive in WebApplicaiton.

The code:

protected void Page_Load(object sender, EventArgs e)
        {
            string strip = "name";
            string Path = Server.MapPath("~/HOD");
            try
            {
                //if file exist delete
                if (File.Exists(Path + "/" + strip + ".pdf"))
                {
                    File.Delete(Path + "/" + strip + ".pdf");
                }
                FileStream fs = new FileStream(Path + "/" + strip + ".pdf", FileMode.Create, FileAccess.Write, FileShare.None);

                Rectangle rec2 = new Rectangle(PageSize.A4);
                Document doc = new Document(rec2, 10, 10, 10, 10);
                PdfWriter writer = PdfWriter.GetInstance(doc, fs);
                doc.Open();               
                doc.Add(new Paragraph("What is your view of the type of support and feedback you received from your Supervisor/Head of Section/Head of Department (with respect to the motivation, guidance and coaching provided during the assessment period)? ", FontFactory.GetFont("Arial", 8, Font.BOLD)));
                doc.Add(new Paragraph("\n"));               
                doc.Close();
                writer.Close();
                fs.Close();
                
            }            
            catch
            {
               
                Response.Write("File could not be created. Please contact administrator");
            }
            string pa = Path + "\\" + strip + ".pdf";
            string path = ResolveClientUrl(pa);
            //load file in frame
            Iframe1.Attributes["src"] = "/HOD/name.pdf";        
            string encodedPath = System.Web.HttpUtility.JavaScriptStringEncode(path, true);
        }

The result:

Best regards,

Sam

Answer 2

User-1038772411 posted

Hi, SweetSteal

<asp:Panel ID="Panel1" runat="server">
    <iframe src="UploadFiles/RR Form_MP, BCA(P)_MCA_1501.pdf" width="400px" height="300px"  />
    </asp:Panel>

Or

Use '@' at the start of your Path,and after that give your whole path;
Like

myframe.Attributes["src"] = @"Folder:\20120517110052.pdf";