File Browse is emptied after failed validation

Why does the file browse text box get emptied after a failed validation? Is there any way to prevent this?
To further explain, create a form on a page with two page items, a text box and a file browse item, then put a not null validation on the text box. When you submit the page with a null text box, but with a file selected for the browse button, then validation catches and throws the error message back to the user when the page refreshes. However, the file browse text box is emptied, and the user has to reselect the file before resubmitting the page.
Is this a bug, or just the way it is supposed to work? Any way around it?
Thanks,
Kris
Edited by: kshenn on Oct 31, 2008 7:06 AM

Hello,
>> Is this a bug, or just the way it is supposed to work?
This is not a bug. Actually, it has nothing to do with APEX. The behavior of the file browse item is controlled by the HTML standard, which clears the field for security reasons.
If you pay close attention to Denes example, you’ll see that even when the validation error page is displayed, the file browse item itself is being cleared. The JavaScript generated file path is the one that retain its value. I don’t have access to Denes code, but I’m assuming that in his uploading procedure he’s using the JavaScript generated path.
>> Any way around it?
Where the file browse item is concern, no workaround.
In your specific case, where the validation you need is “not null”, you can create a JavaScript validation, and fire it before submitting the page (as part of the submit button). That way, the browser will not clear the file browse item, because the page will not be submitted without proper values in your items.
Regards,
Arie.

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