How to create controls dynamically and retain values on postback

Hi,

I have a requriement to create whole controls of one updatepanel dynamically on click of a link button. 

Please find small example below......here it should create all contents of 'Job Details' section on click of 'AddMoreJob' link button. And allow adding any number of job details. Hence, on click of  'AddMoreJob' link button, system should dynamically create new controls with retaining values of previous dynamic controls.

There are so many validations & postback in this page, for instance Fileupload, so its require page to retains all values. Finally on click of submit button, need all control values including dynamic controls values to be passed to db.

Any ideas or some example please.

Thanks for any help and suggestion!

If this is the wrong section of forum for my qs, I would appreciate if anyone can point me to the right direction. Thanks.