How to upload mutiple file?

I know how to upload 1 item by use fileupload

if I want to let user upload 3 file?

do I need to put 3 fileupload controls?

how to do , can do mutiple upload

can you please help?


layout looks like below

FileUpload control
FileUpload control
FileUpload control

Button

when user click Button upload 3 files together
have no idea how to do that... please help

thank you very much
...