[Seaside] Not able to upload [a Seaside.WAFile] through onClick

[Lukas Renggli]

> But instead of returning  "a Seaside.WAFile" it is returning the directory
> path.

File-upload do not work through XmlHttpRequest due to security
restrictions in the web-browser.

The easiest solution is to have a separate form around the upload
field and commit the whole form. Something along ...

html form id: 'fileupload'; multipart; with: [
   html fileUpload
      callback: [ :file | ... ];
      onChange: (SUForm new
         id: 'fileupload';
         submit) ]

If you want to go the AJAX way you have to do some nasty tricks using
IFRAMES to push the data to the server. This is also what GMail is
doing for their file uploads for example.

Lukas

-- 
Lukas Renggli
http://www.lukas-renggli.ch