The Silverlight toolkit is an add-on to Silverlight meant to add additional Silverlight control functionality for developers.  One of these controls is the the headered content control, a pretty simple control: it consists of a header area and a content area, which the header and content can be anything.  This header/content area is a one-to-one mapping; there is only one header and one content area.

While I'm going to write about this control, I'm also going to discuss the nuances of the content-based controls, how they can be bound, and how the entire control can be bound using an underlying data context.

The Silverlight toolkit is available at http://www.codeplex.com/Silverlight.  This control is subject to change in the future, and may change with the release of Silverlight 3.