I have created a PDF using iText and storing it in a particular location (specified in the code). I would like to prompt a save dialog box for the user to choose location on his computer to save the pdf. I checked iText tutorial but it didn't help me.
Here is the code for generating the PDF file:
Document objDoc = new Document();
PdfWriter.GetInstance(objDoc, new FileStream("C:\\HelloWorld.pdf", FileMode.Create));
objDoc.Open();
objDoc.Add(new Paragraph("welcome iText Pdf"));
objDoc.Close();
I tried like this for saving:
string FileName ="HelloWorld.pdf";
String FilePath = #"C:\";
HttpResponse response = HttpContext.Current.Response;
response.ClearContent();
response.Clear();
response.ContentType = "application/pdf";
response.AddHeader("Content-Disposition", "attachment; filename=" + FileName + ";");
response.TransmitFile(FilePath + FileName);
response.Flush();
response.End();
I'm assuming you're doing this from a web page since you tagged this ASP.NET. You need to add the Content-Disposition header. See the following question for details:
Force download of a file on web server - ASP .NET C#
Related
I have a 3rd party API. When i call that api it will output a word document.
In my .net website i have an ASPX page. When user browse that page, i have to call that 3rd party API, get the word document and should send it to user as a downloadable word document.
Note: I cannot call that 3rd party api using javascript for security reasons.
I tried below code
WebClient wClient = new WebClient();
var pagesource = wClient.DownloadString("3rd party api");
Response.Clear();
Response.AddHeader("Content-Type", "application/msword");
Response.AddHeader("Content-Disposition", "attachment; filename=test.docx");
Response.Write(pagesource);
Response.End();
It downloads the word document. But when i open it, it is corrupted.
I believe wClient.DownloadString is going to download the document as a string. You want to use .DownloadData to get the data as a byte array (binary). And then something like:
var fileBytes = wClient.DownloadData("3rd party api");;
if (fileBytes == null) return;
string filename = DateTime.Now.ToString("yyyy-MM-dd") + "-filename.docx";
Response.Clear();
Response.AddHeader("Content-Length", fileBytes.Length.ToString(CultureInfo.InvariantCulture));
//Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", filename)); // save file as attachment
Response.AddHeader("Content-Disposition", string.Format("inline; filename={0}", filename)); // display inline in browser
Response.AddHeader("Content-Type", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
Response.BinaryWrite(fileBytes);
Response.Flush();
Response.End();
Pretty sure your mime type is incorrect for docx. You are using the one for .doc.
Try
Response.AddHeader("Content-Type", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
We have a requirement where I need to open the pdf file from particular location in server i.e. "C:\PdfFile\Test.pdf".
I have tried this solution:
string fileName = lnk.CommandArgument.ToString();
System.Diagnostics.ProcessStartInfo a = new System.Diagnostics.ProcessStartInfo(fileName, "Open");
System.Diagnostics.Process.Start(a);
This is working for local as we have same path in our local But this is not working when we host the site.
In you ASP.NET form application you have to add this code:
Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "attachment; filename=MyFile.pdf");
Response.TransmitFile(Server.MapPath(#"C:\PdfFile\Test.pdf"));
Response.End();
My code is opening a PDF in a tab/new window using an .apsx page and the following code:
string fileName = GetFileName(so);
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "inline; filename=" + fileName);
Response.BinaryWrite(pdfStream);
When selecting the save option in the browser for the PDF, the filename in the save dialogue is not being populated correctly in IE (11); it's still using the page name. Chrome and FF are working like I'd expect them too (using the provided filename as the suggested name).
In addition, IE works the same as Chrome and FF when i change the content-disposition to attachment instead of inline. They all use the filename as the suggested save name.
Am I missing something in how to use the inline functionality?
Did you try change inline to attachment ?
Response.AddHeader("content-disposition", "attachment; filename=" + fileName);
I am working on an asp.net/c# web application that allows users to view and download PDF files. When I am clicking on a file, I get to view that in the PDF reader available in the browser, and when I save it, the file should be saved with the name that I have passed via headers. But this is not the behavior in IE7 & IE8
FileInfo f = new FileInfo(FileName);
Response.ContentType = "application/pdf";
Response.AddHeader("Content-Disposition", "inline; filename=" + f.Name)
When I click to save a file, the filename that I am sending over is not being used to save the file, but the filename of the aspx page in the url is being taken. Is this is a bug in IE. Everything works fine when I try it on Google chrome.
Try Response.AddHeader("Content-Disposition", "attachment;filename=\"" + f.name + "\""); Inline is not working under IE 7-8.
I have to give one option in my website to upload multiple files and then allowing users to download those files.
I have done uploading multiple files part, however I am not much clear how I will do downloading part.
I first thought to add hyperlinks dynamically to a label for each file (as I am not sure how many files user will upload).
But then it opens file in browser and does not give option to save or open file.
Main issue is user can submit any type of file like ms doc or xls or text files etc Hence content type is not fixed.
I am not clear on how exactly I will do it I mean adding link buttons dynamically or adding hyperlinks dynamically. And after that how will I download file? I am not able to do
Response.WriteFile(Server.MapPath(#"~/logo_large.gif"));
as content type is not clear.
Please help me regarding code for download all types of files
for download the file:
public void DownLoad(string FName)
{
string path = FName;
System.IO.FileInfo file = new System.IO.FileInfo(path);
if (file.Exists)
{
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/octet-stream";
Response.WriteFile(file.FullName);
Response.End();
}
else
{
Response.Write("This file does not exist.");
}
}
but this is for word doc/docx files. in the line: Response.ContentType = "application/octet-stream"; you have to define the type of the file.
for displaying hyperlink dynamically write a loop and go over all the files which were uploaded by the user and writh the following code:
yourdivId += "<a href='" + file.FullName + "' >" + file.Name + "</a></br>";
Hope this will help u.()
Response.Clear();
Response.ContentType = YourFile.ToString();
Response.AddHeader("Content-Disposition", "attachment;filename=" + YourFileName);
Response.OutputStream.Write(YourFile, 0, YourFile.Length);
Response.Flush();
Response.End();
I have tried this to download img,txtfile,zip file,doc it works fine..
but little problem user will face that in my case when i opened a word(doc) file its ask
me to openwith..? when i select MsWord it opened it correctly.
For showing these file you can make a grid view to show all file with a download link...
Actually you can follow different ways.
Guide the user during upload and make him specify the file type before starting upload. So the user has to select the content type from a selection. You need to save the correlation between the file and its content type.
Create a map between file extensions and mime-types (See here for example). You need to obtain the file extension and save the correlation between that file and its content type.
Try to identify the content type automatically. There is a Windows
API that let you identify the Mime Type of a file. And here is some code.
After that, you can use st mnmn solution.
You can do it like this:
try
{
string strURL=txtFileName.Text;
WebClient req=new WebClient();
HttpResponse response = HttpContext.Current.Response;
response.Clear();
response.ClearContent();
response.ClearHeaders();
response.Buffer= true;
response.AddHeader("Content-Disposition","attachment;filename=\"" + Server.MapPath(strURL) + "\"");
byte[] data=req.DownloadData(Server.MapPath(strURL));
response.BinaryWrite(data);
response.End();
}
catch(Exception ex)
{
}
You'll have to set few response headers before server sends the file to client. See How to Download a file with a hyperlink