Commented Unassigned: Prevent lost of data during postbacks [27851]

I am using the AjaxFileUpload. When saving the files, there are other data (user input) that needs to be saved too. I do this with just one call to the database. But data of the other forms are lost during postbacks. What should I do to be able to retain the data that the user entered?
Comments: Would you please provide sample project?