Progress Telerik UI for WPF

Docking

A Visual Studio-Like Interface

Provide a Visual Studio-like interface, complete with dockable windows, floating panes and hidden panes.
Tabbed-Documents Support

Support tabbed documents to make the most out of your user interface, complete with the ability to move tabbed documents from one group to another.
Nested Docking

Use nested RadDocking inside other RadDocking instances for even the most complex layout scenarios. This provides multiple DocumentHosts, levels of docking compass restriction and inner Tabs.
User-Defined Layout Saving and Loading

Save and load layouts to ensure that even the most complex user-defined layouts can be easily recreated.
Customizable Compass

With the fully customizable compass, you can restrict certain pane placement positions to ensure interfaces remain manageable.
Complex and Streamlined Interfaces

Pin, hide and unhide panes with the click of a mouse, facilitating both complex and streamlined interfaces with just a few clicks.