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Check for File Exists using Javascript

Shrinivas Mujumdar
Ranch Hand

Joined: Aug 27, 2004
Posts: 328
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

Joined: Nov 08, 2001
Posts: 15376
    
    6
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

Joined: Aug 27, 2004
Posts: 328
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

Joined: Jun 27, 2002
Posts: 401
you could try blurring the file control onfocus:


comp.lang.javascript FAQ: http://jibbering.com/faq/
Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61756
    
  67

Originally posted by Garrett Smith:
you could try blurring the file control onfocus:


How would this help acertain that the file path is correct?


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