Re: Need some ideas for a WO file upload app
Re: Need some ideas for a WO file upload app
- Subject: Re: Need some ideas for a WO file upload app
- From: Jonathan Rochkind <email@hidden>
- Date: Thu, 17 Jul 2003 12:56:11 -0500
I don't think so. It's not a WO issue, it's an HTML Issue. The WOFileUpload
produces an HTML file input widget. The file input widget allows the user
to choose a file, but then will cause the file to be uploaded on form
submit. Which means after the user selected the file, in order to submit
that file so it can be 'listed', the user would have to upload the whole
file, and wait for it to be uploaded before proceeding, which is not what
you asked for. As far as I know, that file input widget is the only thing
in HTML/Javascript that will allow the user to select a local file.
Let's say you could use a javascript hack to allow the user to select the
local file, and then send that file path to the server WITHOUT actually
sending the entire file. This may be possible, using javascript to examine
the file specified in the file input widget, but then copy the path to
another form as a string, and submit that form without uploading the file.
I'm not sure if that's possible. But even if it was.... okay, your server
app now has a list of a bunch of file paths (on the users local machine).
Now the user clicks a button which is supposed to mean "okay, now upload
all of these files". How the heck would you make this work? Hmm, maybe
there is a way, possibly using some fancy javascript. I'm not sure.
So maybe it is possible, using some very fancy javascript. But it's not a
WO issue, it's an issue of how to get HTML/Javascript to do what you want.
If you can do it at all, if you can do it using any software for the web at
all, then you can it in WO. But I'm not sure whether or not you can do it
at all. It'd be tricky.
--Jonathan
At 12:58 PM 7/17/2003 -0400, Richard L. Peskin wrote:
I need to do a WO app that has the ability to upload multiple files
without requiring the user to specify the number of files in advance.
(Traditional HTML approaches have the user specify the number of files
and then an appropriate form is built.) The WO file upload example has
several WOFileUpload elements in a WOForm. I would like to have the
user press a WOFileUpload button, choose a file, see that file listed
and repeat the process until the submit. Can this be done in WO without
resort to client-side Java?
thanks,
--dick peskin
Richard L. Peskin, RLP Consulting, Londonderry, VT
http://www.rlpcon.com
http://www.caip.rutgers.edu/~peskin
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