State Management :: Track Viewstate Of Item In Listbox?

using listbox to add controls. I'm using this listbox to track the change in the value of item in listbox to have confirmation from user if he make some changes on page while he navigates from the page. In other scenario it works fine(if user is navigating to another page).But I have a situation where i need to postback the page and trace whether the item's text in the list box is dirty or not. Can i trace with the dirtytext property of listbox.