About RadListBox for ASP.NET AJAX
    RadListBox is a powerful ASP.NET AJAX control to display a list of items. It allows
	for multiple selection of items, reorder and transfer between two listboxes. Drag
	and drop is fully supported as well. You can easily control the appearance by arranging
	the buttons in different layouts or changing their text. Icons and checkboxes are
	also supported within the listbox items. The RadListBox implements a highly efficient
	semantic rendering, which uses list items and CSS instead of tables. As a result
	the HTML output is significantly reduced, which dramatically improves performance.
	The control can also be bound to all ASP.NET 2.0 declarative datasources (ObjectDataSource,
	XmlDataSource, SqlDataSource, etc) as well as the ASP.NET 3.5 LinqDataSource. Binding
	to XML strings as well as automatic database updates are fully supported. RadListBox
	control has a rich client-side API and comprehensive set of events guaranteeing
	full control over various functions performed on the client. You can easily add/delete/update
	items at the client side and all the changes will be persisted on the server as
	well. The rich client-side API provides unbeatable performance and desktop-like
	experience. RadListBox is shipped with a rich set of skins that allow you to easily
	build slick interfaces with the look-and-feel of Windows Vista, Office 2007, Outlook,
	etc. The skins can be easily switched using a single property.
    The control’s full support for drag-and-drop functionality enables users to transfer
	and reorder items, as well as perform multiple selection. RadListBox implements
	a highly efficient semantic rendering, by using list items and CSS instead of tables.
	This results in significantly reduced HTML output, which dynamically improves performance.
	It also has a rich client-side API with a comprehensive set of events, guaranteeing
	full control over various functions performed on the client.
    RadListBox and 120+ other controls are part of UI for ASP.NET AJAX,
    a comprehensive toolset taking care of the common functionality of your application, while leaving you with more time to work on its business logic.
Key Features
    - Rich client-side functionality
- Drag and Drop Support
- Checkboxes
- Load on Demand
- Templates
- Advanced Skinning
More about RadListBox for ASP.NET AJAX