The WebExplorerBar™ control provides functionality much like that found in the Windows Explorer bar: items are contained in groups and each group may be expanded or collapsed. You can use each item or group to navigate to a URL of your choice, allowing for a simple yet effective navigational layout.
The following lists the various features of WebExplorerBar:
Data Binding -- efficient data-binding support to hierarchical data.
Load on Demand — Only load what is needed by end users.
Customizable Modes — Support for different expandable modes.
The following screenshot displays the WebExplorerBar control and labels its major parts.