Using HttpHandler with Content-Disposition of inline loses filename when saving PDF[Answered] RSS

• • Reply
  desertfoxaz

  Member

  96 Points

  422 Posts

  Using HttpHandler with Content-Disposition of inline loses filename when saving PDF

  Jun 05, 2012 07:23 PM|desertfoxaz|LINK

  We use an HttpHandler to serve up PDFs and had been displaying the document in the browser since Adobe Reader is installed.  The problem with this is that if I set the Content-Disposition to inline, the file name is ignored and when the user goes to save it, the name of the handler is used instead.  If I set the Content-Disposition to attachment, the file name is preserved.

  Code in GetPdf.ashx:

  public void ProcessRequest(HttpContext context)
  {
  	string filePath = context.Server.MapPath("~/App_Data/TestDocument.pdf");
  	byte[] file = File.ReadAllBytes(filePath);
  	string fileName = Path.GetFileName(filePath);
  	HttpResponse response = context.Response;
  
  	// A content disposition of "attachment" will force a "Save or Open" dialog to appear when
  	// navigating directly to this URL, and "inline" will just show open the file in the default viewer
  	response.AppendHeader("Content-Disposition", string.Format("inline; filename={0}", fileName)); // Name will be "GetPdf.pdf"
  	//response.AppendHeader("Content-Disposition", string.Format("attachment; filename={0}", fileName)); // Name will be "TestDocument.pdf"
  	response.AppendHeader("Content-Length", file.LongLength.ToString());
  	response.ContentType = "application/pdf";
  	response.BinaryWrite(file);
  }

  Is there a way to use a Content-Disposition of inline and keep the file name intact when the user saves it or am I stuck with having to use attachment instead?

• • Reply
  Mikesdotnett...

  All-Star

  194881 Points

  28101 Posts

  Moderator

  Re: Using HttpHandler with Content-Disposition of inline loses filename when saving PDF

  Jun 06, 2012 03:20 AM|Mikesdotnetting|LINK

  It's up to the browser to decide what (if anything) to do with the file name that has been presented to it in the response headers. This isn't something you can affect programmatically.

  ASP.NET Tutorials | Learn Entity Framework Core | Learn Razor Pages | Learn Dapper