actionscript button click

[Guest]

on a button click how to handle two event one to call Httpservice to check session is expired and after this call download file if session is valid

[Ned Murphy]

Keep the separate events separate.  Have whatever event handler you use to handle the click deal with checking the http service.  Assuming that processing utilizes yet another event listener for the http service confirmation, then use that to trigger the file download in another event handler function.

[Guest]

After httpservice call reultevent can't trigger filedownload since File Reference download needs separate button click.