File Upload with RegularExpressionValidator not working with Firefox only IE

Question

I have a FileUpload with a RegularExpressionValidator with the following Validation Expression:

^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.gif|.jpg|.JPG|.JPEG|.GIF|.jpeg|.png|.bmp|.3dm|.3dmf|.ai|.drw|.dxf|.esp|.mng|.png|.ps|.psp|.svg|.tiff)$

This way I make sure the User only upload images. But for some reason it does not work when I use Firefox. Why is that and how can I go around the problem?

I would check the uploaded filename to see if there is any difference between what IE is POST'ing vs Firefox as the filename. — Chad Grant, May 01 '09 at 08:11
I've checked. No difference in pathname. Still it's a question why it's not working in Firefox. Selected answer proposes new regex expression vs. explaining what's wrong with firefox. — myforums, Feb 18 '10 at 16:43

score 14 · Answer 1 · answered May 01 '09 at 08:19

14

Try this:

(.*?)\.(jpg|jpeg|png|gif)$

answered May 01 '09 at 08:19

Iralda Mitro

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score 3 · Answer 2 · edited Jun 11 '12 at 04:42

3

An enhancement to DaDa's solution that caters for case-sensitivity:

^(.*?)\.(((j|J)(p|P)(e|E)?(g|G))|((p|P)(n|N)(g|G))|((g|G)(i|I)(f|F)))$

edited Jun 11 '12 at 04:42

Siddharth Rout

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answered Jun 24 '09 at 12:46

Ed Graham

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score 1 · Accepted Answer · answered May 01 '09 at 08:14

1

I found the solution.....

(.*\.([gG][iI][fF]|[jJ][pP][gG]|[jJ][pP][eE][gG]|[bB][mM][pP])$)

Link to the answer

Enjoy!!!

answered May 01 '09 at 08:14

Etienne

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That is a completely different regex than what your question's regex was validating. you can accomplish the exact same thing with a much more readable regex, like the one DaDa posted. – Chad Grant May 01 '09 at 08:30

score 0 · Answer 4 · edited Oct 04 '12 at 08:53

0

I have got a solution to this problem:

var reg = /([^\s]+(?=.(jpg|gif|png|jpeg)).\2)/gm; 
if (reg.test(uploadcontrol) == false) { 
    alert("Please upload valid image formats(.jpg,.gif,.jpeg and .png)");
}

edited Oct 04 '12 at 08:53

Brian Webster

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answered Aug 03 '12 at 04:43

Harish Amilineni

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score -1 · Answer 5 · answered Feb 18 '10 at 19:17

-1

It does not work with Firefox v3.x because it does not allow JavaScript to get full path name from the file input field and this particular regular expression expects to see full path name.

answered Feb 18 '10 at 19:17

myforums

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File Upload with RegularExpressionValidator not working with Firefox only IE

5 Answers5

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