Get full path of a file with FileUpload Control

Question

I am working on a web application which uses the FileUpload control  I have an xls file in the full filepath  C  Mailid xls  that I am attempting to upload   When I use the command   FileUpload1 PostedFile FileName    I cannot get the full filepath from my system   However  when I use the above command in another system it works fine   I also tried the following commands with no success      System IO Path GetFullPath FileUpload1 PostedFile FileName      Path GetFileName FileUpload1 PostedFile FileName      System IO Path GetDirectoryName FileUpload1 PostedFile FileName  ToString       Convert ToString System IO Directory GetParent FileUpload1 PostedFile FileName      How can I get full path

User · Answer

As of IE8  the full path is no longer sent to sites in the Internet Zone   See the  File Upload Control  section at the end of this post  http   blogs msdn com ie archive 2008 07 02 ie8-security-part-v-comprehensive-protection aspx for discussion

User · Answer

Path GetFullPath fileUpload PostedFile FileName     Sorry this  ll get your program file directory   your file name

User · Answer

This will not problem if we use IE browser   This is for other browsers  save file on another location and use that path   if  FileUpload1 HasFile      string fileName   FileUpload1 PostedFile FileName   string TempfileLocation     D  uploadfiles     string FullPath   System IO Path Combine TempfileLocation  fileName    FileUpload1 SaveAs FullPath    Response Write FullPath        Thank you

User · Answer

FileUpload will never give you the full path for security reasons

User · Answer

This dumps the file in your temp folder  with file name  then after that you can call it and not worry about it  Because it will get deleted if it is in your temp folder for an amount of days   string filename   Path Combine Path GetTempPath    Path ChangeExtension Guid NewGuid   ToString     xls                     File WriteAllBytes filename  FileUploadControl FileBytes

User · Answer

Convert ToString FileUpload1 PostedFile FileName

User · Answer

dim path as string   FileUpload1 PostedFile FileName   By the way  I am using Visual Studio 2010  I don t know if there is a difference with the other version

User · Answer

It s currently true that  when you upload a file the browser will only send the source filename and not the full path  - it makes perfect sense that the server has no business knowing whether the file was in  C  WINDOWS   or  F  SOMEDIR OTHERDIR PERSONALINFO    The filename is always sent  and is useful both to help the user  recognise  the content and possibly to interrogate the file extension to help determine the file type   However I know from experience that Internet Explorer definitely used to  in older versions  send the entire path  It s difficult to find an authoritative confirmation  except this apache fileupload control doco      Internet Explorer provides the entire path to the uploaded file and not just the base file name   Regardless  you should not use nor expect the full path to be sent by any  modern  browser

User · Answer

Perhaps you misunderstand the way FileUpload works   When you upload a file  it is effectively being transferred from the client s computer to the server hosting your application  If you re developing the application  most times  both client and server are the same machine  your computer   Once the application is deployed however  there could be any number of clients connecting to the server  each uploading a different file   Knowing the full path of the file on the client s computer usually isn t necessary - you ll often want to do something with the file contents  Your examples seem like ASP NET C   so I m guessing you re using the FileUpload control  You can get at the uploaded file s contents by reading the raw stream  FileUpload PostedFile InputStream  or by saving the file first  FileUpload PostedFile SaveAs   then accessing the saved file  It s your responsibility to save the file  if you want it to be accessible after the current request - if you don t  ASP NET deletes it   One more thing - don t forget to set the enctype property on your form to  multipart form-data   If you don t  the client s browser won t send the file  and you ll spend quite a few minutes wondering what went wrong

User · Answer

Check this post under FileUpload Control  Additionally  the    Include local directory path when uploading files    URLAction has been set to  Disable  for the Internet Zone  This change prevents leakage of potentially sensitive local file-system information to the Internet  For instance  rather than submitting the full path C  users ericlaw documents secret image png  Internet Explorer 8 will now submit only the filename image png   Its an option under Internet security that can be enabled

User · Answer

Check this    lt    Page Language  VB  AutoEventWireup  false  CodeFile  FileUp aspx vb  Inherits  FileUp    gt    lt  DOCTYPE html PUBLIC  -  W3C  DTD XHTML 1 0 Transitional  EN   http   www w3 org TR xhtml1 DTD xhtml1-transitional dtd  gt    lt html xmlns  http   www w3 org 1999 xhtml  gt   lt head runat  server  gt       lt title gt  lt  title gt   lt  head gt   lt body gt       lt form id  form1  runat  server  gt       lt div gt           lt asp Label ID  Label1  runat  server  gt  lt  asp Label gt  lt br   gt          lt asp FileUpload ID  FileUpload1  runat  server    gt  lt br   gt           lt asp Button ID  Button1  runat  server  Text  Upload    gt       lt  div gt       lt  form gt   lt  body gt   lt  html gt    Code   Partial Class FileUp     Inherits System Web UI Page     Protected Sub Button1 Click ByVal sender As Object  ByVal e As System EventArgs  Handles Button1 Click         Dim path As String         Dim path1 As String         path   Server MapPath               FileUpload1 SaveAs path   FileUpload1 FileName          path1   path   FileUpload1 FileName         Label1 Text   path1         Response Write  File Uploaded successfully       End Sub End Class

User · Answer

You can t get full path of a file at client s machine  Your code might work at localhost because your client and the server is the same machine and the file is at the root directory  But if you run it on a remote machine you will get an exception

User · Answer

Just to give my 2 cents    At this moment I also DO get the full user s local path  It s only from 1 machine that I can replicate this issue  but it really does give the full path of the file at the machine of the user    This is a end-user of our application which is hosted on a off-site server  So it s not on the local machine nor on a local server from which it might happen to be a share   You can resolve the issue  at least to have the same behaviour all the time by this   Path GetFileName fileUpload FileName    Btw  just found this article which states it can happen too  http   www eggheadcafe com community aspnet 17 10092650 fileupload-control-pro aspx  Just to confirm the issue

User · Answer

Try  Server MapPath FileUpload1 FileName     Edit   This answer describes how to get the path to a file on the server   It does not describe how to get the path to a file on the client  which is what the question asked   The answer to that question is  you can t   because modern browser will not tell you the path on the client  for security reasons

User · Answer

I m using IE 8  on two separate machines    Each still uploads the full local file path   As suggested by Gabri  l  Path GetFileName fileUploadControl PostedFile FileName  appears to be the only way to ensure that you only get the filename

User · Answer

On Internet Explorer Options  on security tab click on custom security button  there have an option to send the local path when loading some file to server   Disabled as default  Just enable it

User · Answer

IE 7 and previous versions sent the full path of the uploaded file to the server related to the input type  file  field  Firefox and other modern browsers consider this to be a security flaw and do not  However  this appears to be have been fixed in IE 8   Perhaps you should instead evaluate why you need the full path to the file as it was located on the client s system  I think it is really superfluous information that should never be posted at all  All you should be concerned with the is the file name so that you can save the file without making changes to the name

User · Answer

I had sort of the opposite issue as the original poster  I was getting the full path when I only wanted the filename  I used Gabri  l s solution to get just the filename  but in the process I discovered why you get the full path on some machines and not others    Any computer joined to domain will give you back the full path for the filename  I tried this on several different computers with consistent results  I don t have an explanation for why  but at least in my testing it was consistent

[asp.net] Get full path of a file with FileUpload Control

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