FileReference: post file without browsing - actionscript-3

Question

I am trying to upload a file to the server. I'm doing it like this:
var fileRef:FileReference = new FileReference();
fileRef.addEventListener(flash.events.Event.SELECT, selectHandler);
fileRef.addEventListener(flash.events.Event.COMPLETE, completeHandler);
fileRef.addEventListener(ProgressEvent.PROGRESS, normalprogressHandler);
fileRef.browse();
function selectHandler(event:flash.events.Event):void
{
var params:URLVariables = new URLVariables();
params.date = new Date();
params.ssid = "94103-1394-2345";
var request:URLRequest = new URLRequest("http://www.test.com/Uploads");
request.method = URLRequestMethod.POST;
request.data = params;
fileRef.upload(request, "Custom1");
}
function completeHandler(event:flash.events.Event):void
{
trace("uploaded");
}
function normalprogressHandler(event:ProgressEvent):void
{
var percent:Number = Math.floor((event.bytesLoaded * 100)/ event.bytesTotal );
trace(percent+"%");
}
Would it be possible to upload a file but without browsig for it? I want to decide myself what file to upload instead of the user performing a browse first

Answer 1

You can't do that with FileReference which has the following limitations (reference):
The load() and save() APIs can only be called in response to user
interaction (such as a button click).
The locations of the loaded and save files are not exposed to
ActionScript.
The APIs are asynchronous (non-blocking).
Clearly, it would represent a major security risk if the Flash player was arbitrarily allowed to upload anything from your local file system to a remote server.
If you're trying to upload from an AIR app, you can do what you're trying to do with the File class.