Send a file to Client's Browser for downloading using Absolute Path RSS

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  knowledgist

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  Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 02:32 PM|LINK

  Hey All,

  I have a webform when use access that form on the Page Load event the following method calls for downloading. Here I used both Response.TransmitFile and Response.WriteFile to send the file to the client's browser to show Open/Save/Cancel dialog box but it does not work.

  My file is exist on some remote location and using the absolute path for downloading as mentioned below.

  Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
  
          Response.ContentType = "video/mp4"
          Response.Clear()
          Response.AddHeader("content-disposition", "attachment")
          Response.TransmitFile("http://localhost/file/Chaos.mp4")
          Response.End()
  
      End Sub

  Kindly help me to resolve this issue. Also If I could detect the file has been downloaded from the server.

  Thank you.

  
  
  

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  oned_gk

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  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 02:40 PM|LINK

  try Response.redirect("http:// localhost/file/Chaos.mp4")
  Programming to simplify, dont look for hard way
  • Marked as answer by knowledgist on Nov 20, 2012 09:14 AM
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  Shailendra S...

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  145 Posts

  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 03:16 PM|LINK

  Private Sub getFile()
  
      If DocumentID > 0 Then
        Dim _doc As New DocumentRepository
        _doc = DocumentsRepository.GetFile(DocumentID)
  
        If _doc IsNot Nothing Then
          Dim sPath As String
  
         
  
          sPath = String.Format("/{0}/{1}{2}", spath2, _doc.FileName, _doc.FileExt)
  
          'sPath = String.Format("/{0}/{1}{2}", _doc.FilePath, _doc.FileName, _doc.FileExt)
  
          'Response.Write(sPath)
          Dim strMappedPath As String = HttpContext.Current.Server.MapPath(sPath)
  
          Response.Write(strMappedPath)
  
          If File.Exists(strMappedPath) Then
            Dim filedata As Byte()
  
            Using fs As New FileStream(HttpContext.Current.Server.MapPath(sPath), FileMode.Open, FileAccess.Read)
              Dim lngLen = fs.Length
              ReDim filedata(CInt(lngLen - 1))
  
              fs.Read(filedata, 0, CInt(lngLen))
            End Using
  
            With Response
              .Clear()
              .ContentType = _doc.ImageType
              .Cache.SetCacheability(HttpCacheability.Private)
              .Expires = -1
              .Buffer = True
              .AddHeader("Content-Disposition", String.Format("{0};FileName=""{1}""", "attachment", Path.GetFileName(strMappedPath)))
              .BinaryWrite(filedata)
              .End()
            End With
  
          Else
            Response.Write(" Error downloading file.")
          End If
        End If
      End If
  
    End Sub

  Mark as answer if it answered your question.
  
  www.techaray.com
  
  
  
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  ramiramilu

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  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 03:43 PM|LINK

  set ContentLength too - http://www.intstrings.com/ramivemula/asp-net/how-to-download-files-from-server-to-client-using-a-generic-handler/ 

  Thanks,

  Website
  JumpStart
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  markfitzme

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  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 05:08 PM|LINK

  You cannot use any transmit file methods in that fashion. The files must be local to the file system. You could either redirect them to the other website, or use the httpwebrequest/httpwebresponse classes to download and transmit the file yourself. The latter is not a good option for large files since you would require a full download before you could transmit it to the client.

  Don't forget to mark useful responses as Answer if they helped you towards a solution.
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  Ruchira

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  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 17, 2012 05:14 PM|LINK

  knowledgist

  Response.ContentType = "video/mp4"
          Response.Clear()
          Response.AddHeader("content-disposition", "attachment")
          Response.TransmitFile("http://localhost/file/Chaos.mp4")
          Response.End()

  Hello,

  Try this

  Response.Clear()
  Response.ContentType = "application/octet-stream"
  Response.AddHeader("Content-Disposition", "attachment;filename=Chaos.mp4")
  Response.Flush()
  Response.TransmitFile("http://localhost/file/Chaos.mp4")
  Response.End()

  Please 'Mark as Answer' if this post helps you.

  My Tech blog | My YouTube Channel
• • Reply
  

  knowledgist

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  135 Posts

  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 19, 2012 05:17 AM|LINK

  The thing is the file which I want to download is exist on some remote location for example http://www.abc.com/folder/chaos.mp4 And the application from where the user is downloading the file is on some different location for example http://www.xyz.com where the user has a list of files for downloading, when user clicks on the link to download the file should be download from the remote location like http://www.abc.com/folder/chaos.mp4

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  Ruchira

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  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 19, 2012 05:47 AM|LINK

  knowledgist

  The thing is the file which I want to download is exist on some remote location

  Oopss. In that case, Mark is correct. You have to use his solution.

  Please 'Mark as Answer' if this post helps you.

  My Tech blog | My YouTube Channel
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  manjuby

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  251 Posts

  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 19, 2012 05:48 AM|LINK

  I think you r forgetting to attach the file..just chk the code below..
  
  string pdfPath = MapPath("mypdf.pdf");
  Response.ContentType = "Application/pdf"; 
  Response.AppendHeader("content-disposition", "attachment; filename=" + pdfPath ); 
  Response.TransmitFile(pdfPath);
  Response.End();

  Plz click Answer..if it suits your need
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  knowledgist

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  86 Points

  135 Posts

  Re: Send a file to Client's Browser for downloading using Absolute Path

  Nov 19, 2012 07:06 AM|LINK

  Ruchira, I didn't get you....