CollapsablePanel is a layout cotnrol that allows user collapsed / expand the content by click the panel header.and you could resize the panel and drag and drop anywhere.

CollapsablePanel key features:

• Supposts toggle content, header title and header image.
• Supports server side content template
• Supports resizable
• Supports drag and drop.
• Supports load content from remote url.
• Supports show/hide animations.