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From Günther Wieser <>
Subject AW: AW: Multi-select file chooser
Date Mon, 28 Feb 2005 23:50:26 GMT
i don't want to stop your motiviation here, but a problem might be that
there's no "hidden" file input field. and if it's not a file input field
it's useless as we need the browser to do all the encoding of the content
into multipart/mime etc.....

is it possible to add input elements using java in way that they don't get

-----Ursprüngliche Nachricht-----
Von: Frank W. Zammetti [] 
Gesendet: Dienstag, 01. März 2005 00:45
An: Struts Users Mailing List
Betreff: Re: AW: Multi-select file chooser

Ah, didn't see this until I posted that form code :)

This is what I was talking about with the "better ways to present the UI "
comment.  I would have to test it, but I *think* you should be able to have
a single <file> element that is visible, with a number of hidden ones, and
for each file you select with the visible one you actually populate a hidden
one.  Maybe have a listbox that the files get added to, and the user can
remove existing items or add new ones, something along those lines (I'm
thinking out loud here).

There might be some scripting security issues there, I'd have to play a bit,
but I suspect it might work.  That would give you your single browse and
upload button like you want.

If this is something that is interesting to enough people, I would mind
throwing a real tag together with some options and such, perhaps a couple of
different UI presentations, etc.

Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Technologies

Rakefet Bitton wrote:
> Frank W. Zammetti <fzlists <at>> writes:
>>You can have as many <file> elements in a form as you want, and you 
>>can process them all at once.  My web host (LunarPages) has a decent 
>>file manager, one of the functions it has is the ability to upload up 
>>to 12 files at a time.
>>I don't know of any single tag to render such a form, but that's 
>>really what you need, and it should be trivial to write (although I'd 
>>bet it exists somewhere).  It's the server-side processing that 
>>*could* be tricky (although I think Commons Upload would deal with it 
>>just fine, probably give you a collection or something, I forget what 
>>the interface looks like.)
> Yes, you can have as many <file> elements as you want on a form. But 
> wouldn't you have a "browse" button for each <file> element? What I 
> was hoping is that when the user selects the "browse" button and the 
> file chooser comes up, they could select more then 1 file.  Do you know
how I might do this?
> Thanks,
> Rocky Bitton
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