#613 – Window Event Sequence

Posted by jasper22 at 14:14 | Tuesday, July 31, 2012

The full sequence of events fired for a Window object are as follows.

On application startup, if the Window is the application’s main window. (Application events are also shown in the correct sequence).

Application.Startup
Window.Initialized
Window.IsVisibleChanged
Window.SizeChanged
Window.LayoutUpdated
Window.SourceInitialized
Application.Activated
Window.Activated
Window.PreviewGotKeyboardFocus
Window.IsKeyboardFocusWithinChanged
Window.IsKeyboardFocusedChanged
Window.GotKeyboardFocus
Window.LayoutUpdated
Window.Loaded
Window.ContentRendered

On normal application shutdown, the event sequence is:

Window.Closing
Window.IsVisibleChanged
Window.Deactivated
Application.Deactivated
Window.IsKeyboardFocusWithinChanged
Window.IsKeyboardFocusedChanged
Window.LostKeyboardFocus
Window.Closed
Application.Exit

Read more: 2,000 Things You Should Know About WPF

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