Upload - immediate - browser problems

Hello,

Got small problems with Upload to start file selecting without click to upload Button.
Normally when i click upload button browser show up…

But if there is any other posibility to start file select(file picker) not ussing upload button???

tried already:

[code]
Upload upload = new Upload();
upload.setImmediate();
layout.addComponent(upload);

upload.submitUpload()
[/code]When using submitUpload - it start upload without showing file picker…

Is there anyother chance to send information that file browser should showup without user clicking upload button.
I realy need to start this file choser. I tried to find something about it at forum but cannot find anything about that…

I asked about this and it could possibly be doable on the client side, via uploadInputElement.click(), but probably not possible on the server-side.

This has also been filed as an enchancement request:
http://dev.vaadin.com/ticket/7197
.