Video Title

Prerequisites

Summary

Video 

Reference Materials

Additional Information

http://sandblogaspnet.blogspot.com/2009/07/working-with-modal-popup-extender.html – This blog is a step by step in using a Modal Popup.

http://aspdotnetcodebook.blogspot.com/2009/03/how-to-open-modalpopup-inside.html – How to open a modal popup within another modal popup.