Win a copy of Re-engineering Legacy Software this week in the Refactoring forum
or Docker in Action in the Cloud/Virtualization forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Check for File Exists using Javascript

 
Shrinivas Mujumdar
Ranch Hand
Posts: 328
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

I am coding a JSP file, where there is a need for File Upload. I am using
<input type="file" ...> tag.

Now, suppose end user enters some garbage value in Textfield (in File Upload control), & clicks Submit button it gives javascript error on status bar ('Error on Page' on left hand side bottom region), It says Access is Deniedwhere i am trying to submit this form. If i browse some file using Browse button it works fine.

On click of a Submit button, i am calling a Javascript function which checks for 'Submit' button click & if Submit is clicked, sets action (.action) property to neccessary URL & submits the page to new action url. With alert i have checked for the correctness of the URL & it is fine in both cases.

My question is, Is it possible somehow so that i could say to a user that "file name is incorrect" or similar.

I can't check for file path as this system could be accessed from Windows as well as Linux OS machines.

Thanks in Advance,
Shriniwas
 
Eric Pascarello
author
Rancher
Posts: 15385
6
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
JavaScript can not access the local file system so there is nothing you can do to see if a file exists.

Eric
 
Shrinivas Mujumdar
Ranch Hand
Posts: 328
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks Eric,

Do you suggest any solution for the above mentioned problem?

Rather, it's not specific to Eric , it's open for everybody.

Thanks in Advance,
Shriniwas
 
Garrett Smith
Ranch Hand
Posts: 401
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
you could try blurring the file control onfocus:
 
Bear Bibeault
Author and ninkuma
Marshal
Pie
Posts: 64633
86
IntelliJ IDE Java jQuery Mac Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Originally posted by Garrett Smith:
you could try blurring the file control onfocus:


How would this help acertain that the file path is correct?
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic