#19 – The System.Windows Namespace

Most user-interface related classes that a WPF application will use are located in the System.Windows namespace or one of its subordinate namespaces.

Some of the classes present in System.Windows :

• Application – Encapsulated a WPF application
• Clipboard – Transfer data to/from clipboard
• ContentElement – Base class for contents elements, for flow-style presentation
• DataObject – Transfering data
• DataTemplate – Visual structure of a data object
• DependencyObject – Object that participates in dependency property system
• DependencyProperty – Properties that support data binding, inheritance, etc.
• EventManager – Event-related utility methods
• FrameworkElement – Extends UIElement & provides support for logical tree, et al
• MessageBox – Displays a message box
• ResourceDictionary – Dictionary that contains WPF resources
• RoutedEvent – Routed event
• Style – Sharing of properties/resources between instances
• UIElement – Base class for graphical elements
• UIElement3D – Base class for 3D elements
• Window – Window in user interface