Here are some useful tricks for the AJAX collapsible panel. I wanted to programmatically expand the collapsible panel but only succeed it when I set CollapsiblePanelExtender1.ClientState = "false";
http://www.dotnetcurry.com/ShowArticle.aspx?ID=230
Cheers,
samitha
http://www.dotnetcurry.com/ShowArticle.aspx?ID=230
Cheers,
samitha