I have generated a pdf file from html and now I need to save it to a folder in my project.
I am able to get the generated pdf to download locally but when I send it to the file folder it gets corrupted and will not open.
public void CreateHTML(ComplaintIntakeData cd)
{
string formHtml = "<table class=\"MsoNormal\">";
string complaintTypeHtml = PCSUtilities.GetComplaintTypeHTML(cd);
string providerHtml = "";
if (cd.Providers != null && cd.Providers.Count > 0)
{
providerHtml = PCSUtilities.GetProviderHTML(cd);
}
string facilityHtml = PCSUtilities.GetFacilityHTML(cd);
string anonymousHtml = PCSUtilities.GetAnonymousHTML(cd);
string contactHtml = PCSUtilities.GetContactHTML(cd);
string patientHtml = PCSUtilities.GetPatientHTML(cd);
string detailsHtml = PCSUtilities.GetComplaintDetailsHTML(cd);
formHtml = formHtml + complaintTypeHtml + providerHtml + facilityHtml + anonymousHtml + contactHtml + patientHtml + detailsHtml + "</table>";
formHtml = formHtml.Replace("''", "\"");
// Load HTML template for letter and replace template fields with provider data
string htmlContent = File.ReadAllText(Server.MapPath("~/ComplaintIntakeForm.html"));
htmlContent = htmlContent.Replace("<%ComplaintInformation%>", formHtml);
string fileName = "ComplaintIntakeFile_" + cd.ComplaintGuid.ToString() +".pdf";
using (MemoryStream memStream = new MemoryStream())
{
try
{
// Load up a new PDF doc.
iTextSharp.text.Document pdfDoc = new iTextSharp.text.Document(PageSize.LETTER);
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, memStream);
// writer.CompressionLevel = PdfStream.NO_COMPRESSION;
// Make document tagged PDFVERSION_1_7
writer.SetPdfVersion(PdfWriter.PDF_VERSION_1_7);
writer.SetTagged();
// Set document metadata
writer.ViewerPreferences = PdfWriter.DisplayDocTitle;
pdfDoc.AddLanguage("en-US");
pdfDoc.AddTitle("Complaint Intake Form");
writer.CreateXmpMetadata();
pdfDoc.Open();
var tagProcessors = (DefaultTagProcessorFactory)Tags.GetHtmlTagProcessorFactory();
//tagProcessors.RemoveProcessor(HTML.Tag.IMG);
//tagProcessors.AddProcessor(HTML.Tag.IMG, new CustomImageTagProcessor());
var cssFiles = new CssFilesImpl();
cssFiles.Add(XMLWorkerHelper.GetInstance().GetDefaultCSS());
var cssResolver = new StyleAttrCSSResolver(cssFiles);
var charset = Encoding.UTF8;
var context = new HtmlPipelineContext(new CssAppliersImpl(new XMLWorkerFontProvider()));
context.SetAcceptUnknown(true).AutoBookmark(true).SetTagFactory(tagProcessors);
var htmlPipeline = new HtmlPipeline(context, new PdfWriterPipeline(pdfDoc, writer));
var cssPipeline = new CssResolverPipeline(cssResolver, htmlPipeline);
var worker = new XMLWorker(cssPipeline, true);
var xmlParser = new XMLParser(true, worker, charset);
try
{
using (var sr = new StringReader(htmlContent))
{
xmlParser.Parse(sr);
// xmlParser.Flush();
}
}
catch (Exception e)
{
Response.Write(e.Message);
}
pdfDoc.Close();
//writer.Close();
///this creates a pdf download.
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment; filename=" + fileName);
Response.OutputStream.Write(memStream.GetBuffer(), 0, memStream.GetBuffer().Length);
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show("The following error occurred:\n" + ex.ToString());
}
}
}
when I add the following to create the file. The file is created but it is corrupted and cannot open as a pdf
using (FileStream file = new FileStream(Server.MapPath("~/tempFiles/") + fileName, FileMode.CreateNew))
{
byte[] bytes = new byte[memStream.Length];
memStream.Read(bytes, 0, memStream.Length);
file.Write(bytes, 0, bytes.Length);
}
I think this answer is relevant:
Copy MemoryStream to FileStream and save the file?
Your two code snippets use both memStream and memString and without seeing all the code in context, I'm guessing. Assuming memStream is a Stream that contains the contents of your PDF, you can write it to a file like this:
using (FileStream file = new FileStream(Server.MapPath("~/tempFiles/") + fileName, FileMode.CreateNew))
{
memStream.Position = 0;
memStream.CopyTo(file);
}
I wound up moving the new FileStream call into the PdfWriter.GetInstance method in place of the memStream variable. And was able to get rid of the using filestream code all together.
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, new FileStream(Server.MapPath(path)+"/" + fileName, FileMode.CreateNew));
I have a problem with get files to zip.
The web service is giving me the right files, for example www.XYP.com/GetFile?=1234 , when I open the Url, automaticly downloads the file, but after I zip this document its not correct files, which are destroyes
My code is here:
private void CreatedZipFile(Dictionary<int, string> listChecked)
{
using (MemoryStream memoryStream = new MemoryStream())
{
using (ZipArchive archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
{
foreach (KeyValuePair<int, string> kvp in listChecked)
{
ZipArchiveEntry demoFile = archive.CreateEntry(kvp.Key.ToString() + kvp.Value.ToString() + ".pdf");
string strDownLoad = System.Configuration.ConfigurationManager.AppSettings["GETFILESERVICES"] + kvp.Key.ToString();
WebService control = new WebService();
var clientnew = new System.Net.WebClient().DownloadData(strDownLoad);
using (var entryStream = demoFile.Open())
{
using (StreamWriter streamWriter = new StreamWriter(entryStream))
{
streamWriter.BaseStream.Write(clientnew, 0, clientnew.Length);
streamWriter.Close();
}
}
}
}
byte[] bytesInStream = memoryStream.ToArray();
Response.ContentType = "application/zip";
Response.AddHeader("content-disposition", "attachment; filename=file.zip");
Response.Buffer = true;
Response.Clear();
Response.BinaryWrite(bytesInStream);
Response.Flush();
//MemoryStream.WriteTo(Response.OutputStream); //works too
Response.End();
}
}
Thanks for help or any advice,
I've developed a pdf file using itextsharp.
Pdf generation is working fine. After the pdf is created it's being downloaded.
My problem is when the user clicks on Generate PDF button , Pdf is generated and downloaded properly but postback doesn't occurs.
I want the postback to be occured because I want to Reset my Form after Pdf is generated that is Clear All Fields .
How Can I do this ?
Here is my code :
Method to Generate PDF :
public void GetPDF(string quote_num)
{
string url = FilesPath.Path_SaveFile + Session["empcd"].ToString() +"-Quotation.pdf";
Document disclaimer = new Document(PageSize.A4, 2, 2, 10, 10);
PdfWriter writer = PdfWriter.GetInstance(disclaimer, new FileStream(url, FileMode.Create));
writer.PageEvent = new myPDFpgHandler(quote_num);
disclaimer.SetMargins(70, 10, 60, 80);
disclaimer.Open();
GenerateQuotPDF getpdf = new GenerateQuotPDF();
disclaimer = getpdf.GetPDFparams(disclaimer,quote_num, Session["empcd"].ToString(),txt_contactperson.Text,txt_contact1.Text,txt_company.Text,txt_address.Text,ddl_gene_desc.SelectedItem.ToString(),ddl_canopy.SelectedItem.ToString(),ddl_gene_type.SelectedItem.ToString(),txt_rentalamount.Text,txt_hours.Text,txt_variable.Text,ddl_terms.SelectedItem.ToString(),txt_remarks.Text,txt_technical.Text,ddl_sign1.SelectedValue,ddl_sign2.SelectedValue,txt_designation.Text,DateTime.Now);
disclaimer.Close();
System.IO.FileInfo file = new System.IO.FileInfo(url);
if (file.Exists)
{
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(url);
Response.AddHeader("content-disposition", "attachment; filename=" + Session["empcd"].ToString() + "-Quotation.pdf");
Response.AddHeader("content-length", buffer.Length.ToString());
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
}
}
Generate PDF Button Code :
protected void btn_submit_Click(object sender, EventArgs e)
{
if (IsValidQuotation())
{
string newQuotNum = rental_quotations.GetNewQuotNumber();
rental_quotations.AddNewQuotation(newQuotNum, Session["empcd"].ToString(), ddl_gene_type.SelectedValue.ToString(), ddl_gene_desc.SelectedValue, ddl_canopy.SelectedValue, txt_company.Text, txt_address.Text, txt_contactperson.Text, txt_designation.Text, txt_contact1.Text, txt_contact2.Text, txt_rentalamount.Text, ddl_terms.SelectedValue, txt_hours.Text, txt_variable.Text, txt_remarks.Text,ddl_sign1.SelectedValue,ddl_sign2.SelectedValue,txt_technical.Text);
GetPDF(newQuotNum);
ClearAllFields(); //this is not working
}
}
Postback is occurring since the file is being created. Try the given solution. Your GetPDF(string quote_num) function is doing two tasks that you should break into two functions.
Creating the pdf document.
Downloading the pdf file after it is done.
Now, After you have created the document, you should clear the controls and then send the file as response. Therefore do it as follows:
Create pdf file.
public void CreatePDF(string quote_num)
{
string url = FilesPath.Path_SaveFile + Session["empcd"].ToString() +"-Quotation.pdf";
Document disclaimer = new Document(PageSize.A4, 2, 2, 10, 10);
PdfWriter writer = PdfWriter.GetInstance(disclaimer, new FileStream(url, FileMode.Create));
writer.PageEvent = new myPDFpgHandler(quote_num);
disclaimer.SetMargins(70, 10, 60, 80);
disclaimer.Open();
GenerateQuotPDF getpdf = new GenerateQuotPDF();
disclaimer = getpdf.GetPDFparams(disclaimer,quote_num, Session["empcd"].ToString(),txt_contactperson.Text,txt_contact1.Text,txt_company.Text,txt_address.Text,ddl_gene_desc.SelectedItem.ToString(),ddl_canopy.SelectedItem.ToString(),ddl_gene_type.SelectedItem.ToString(),txt_rentalamount.Text,txt_hours.Text,txt_variable.Text,ddl_terms.SelectedItem.ToString(),txt_remarks.Text,txt_technical.Text,ddl_sign1.SelectedValue,ddl_sign2.SelectedValue,txt_designation.Text,DateTime.Now);
disclaimer.Close();
}
Reset the controls.
ClearAllFields();
Send the file as response.
public void SendPDF(string url)
{
System.IO.FileInfo file = new System.IO.FileInfo(url);
if (file.Exists)
{
WebClient client = new WebClient();
Byte[] buffer = client.DownloadData(url);
Response.AddHeader("content-disposition", "attachment; filename=" + Session["empcd"].ToString() + "-Quotation.pdf");
Response.AddHeader("content-length", buffer.Length.ToString());
Response.ContentType = "application/pdf";
Response.BinaryWrite(buffer);
Response.End();
}
}
Note that I also added Response.End() to clear the buffer.
I have this simple piece of code which I took from another question here with the same topic, corrupted PDF files.
I've tried to implement the described solution, along with other references, but have met no sucess yet.
Here are the two functions generating my example PDF:
private void ShowPdf (byte[] str)
{
var Response = HttpContext.Current.Response;
Response.ClearContent();
Response.ClearHeaders();
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "attachment; filename=" + DateTime.Now);
Response.BinaryWrite(str);
Response.End();
Response.Flush();
Response.Clear();
}
private byte[] CreatePDF2()
{
Document doc = new Document(PageSize.LETTER, 50, 50, 50, 50);
using (MemoryStream output = new MemoryStream())
{
PdfWriter wri = PdfWriter.GetInstance(doc, output);
doc.Open();
Paragraph header = new Paragraph("Test bug") { Alignment = Element.ALIGN_CENTER };
Paragraph paragraph = new Paragraph("test.");
Phrase phrase = new Phrase("testnewline. \nnewline hapenned.");
Chunk chunk = new Chunk("Chucnk cauncuanocnaacoocsinasiocniocsanacsoi chunk.");
doc.Add(header);
doc.Add(paragraph);
doc.Add(phrase);
doc.Add(chunk);
doc.Close();
return output.ToArray();
}
}
Then at an request, I just consume it as in:
ShowPdf(CreatePDF2());
The problem is that this generates a file called "Response.pdf.pdf", which is corrupt and can't be opened.
How can I solve this problem?
Obs.: I am currently using iTextSharp 4.1.6
Try this for output variable,
FileStream output = new FileStream(Server.MapPath("MyFirstPDF.pdf"), FileMode.Create);
How do i download a file in asp.net?
here is what i did to upload it:
I upload the file into the website and saved the url to it in a database like this:
string CVPath = null;
if (uploadfiles.HasFile)
{
string file = uploadfiles.FileName;
uploadfiles.PostedFile.SaveAs(Server.MapPath(".") + "//CV//" + file);
CVPath = "~//ProfileImages//" + file;
FileName.InnerText = file;
}
else
CVPath = "";
and then I save the "CVPath" in a database
To download a file, first you need to read all the contents to a string.
MemoryStream ms = new MemoryStream();
TextWriter tw = new StreamWriter(ms);
tw.WriteLine("YourString");
tw.Flush();
byte[] bytes = ms.ToArray();
ms.Close();
Response.Clear();
Response.ContentType = "application/force-download";
Response.AddHeader("content-disposition", "attachment; filename=file.txt");
Response.BinaryWrite(bytes);
Response.End();