I always wanted to be able to fill a panel with information gathered from all around the page directly after my end user selected his options and present them into a summary. Dynamic populate extender is a nice controller of a panel that is expected to be filled dynamically at the choices of the user. This article will show an example on how I used the control to provide the user with feedback about the extra preferences that a customer would select on a page. The whole project is attached for your own review. Let us examine my simple Pizza selection screen.