File Uploads

I am trying to put a File Upload box on a page and have it populated with an entry - "c:\test.txt". The user can then modify the entry. I tried the below code but nothing was in the box. What am I doing wrong?


<p><input type="file" name="F1" size="20" value="c:\test.txt"></p>
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Neal HartmanAsked:
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seanpowellCommented:
You can't preset the value in a File Upload control...

<p><input type="file" name="F1" size="20"></p>
Saqib KhanSenior DeveloperCommented:
Thats a Security Issue.

Imagine you saved your passwords into a file c:\passwords.txt

and on my site i have a File upload Field and users will Push the button to upload files.
This way they can upload their Text Files(Holding passwords) without a notice and it is a Serious Security Issue.

if that was possible people could set the path as the form hidden field to(eg, c:\passwords.txt)  and get Values from hard Drive without a notice.

I hope you got the point.
seanpowellCommented:
Yes - part of it's a security issue - part of it's user interaction. When the INPUT FILE type was first implemented, the problem with including the value attribute was that there was potential - for user's that needed to upload many files - of simply uploading the same file again and again (this is an inherent issue with the component, unless you move to an asp file upload component which allows for synchronous multiple file upload)

Coupled with the potential for abuse, it was determined that the ability to set a predetermined value for the file type would not be included as a user-agent component. As far as I know, every browser has adopted that model, and so there's no way to set it from the receiving site.

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Neal HartmanAuthor Commented:
Got the idea, thanks.
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