WPF events quick reference

An event occurs when there is a change in your Microsoft Expression Blend application. For example, if someone who is running your application clicks a button, a Click event is raised. You can make your application respond to events by using event triggers in Expression Blend, or by using event handlers, which are programmed in code. For more information, see Triggers and user interactivity and Event handling and user interactivity.

Note

This topic contains information for Windows Presentation Foundation applications. For information about Microsoft Silverlight 1.0 event handling, see Overview of Silverlight 1.0 and Create a button that controls a storyboard in a Silverlight application. Also see Silverlight scripting and mouse events. For information about Silverlight 2 events, see the documentation for the individual controls listed in the Silverlight 2 Control Gallery.

Though you cannot write program code for event handlers within Expression Blend, you can use the event handler feature to generate code for event handler methods. To generate event handler code, click the Events button within the Properties panel, and then double-click an event. If you have Microsoft Visual Studio 2008 Standard Edition or above installed, double-clicking an event in Expression Blend will enable an automated experience in which the code for the event handler is automatically pasted into the code-behind file for your application. If you have Visual Studio Express Edition installed, or if you do not have any edition of Visual Studio installed, your experience will involve a manual workflow that uses the Clipboard. You can configure Expression blend in two different modes, to choose between these two experiences. To do so, click Options on the Tools menu, click Event Handlers, and then select whether to use Visual Studio if it is available, or whether to always use the Clipboard. For more information, see Event handling and user interactivity and Create a new event handler method.

For quick reference, following is a list of the events that are available within Expression Blend. The events that are available may vary according to the object that you have selected under Objects and Timeline in the Interaction panel. For example, if you select the LayoutRoot object under Objects and Timeline, you will not be able to create an Activated event handler method because that event is only valid for Window objects.

Please note that you can also see what each event does by pausing your mouse pointer over the name of an event in the Events panel, to view the tooltip for the event. Additionally, you can see even more details for each event within the Events section of MSDN.

Event	Description
Annotation.AnchorChanged	Occurs when an anchor element is added, removed, or modified.
Annotation.AuthorChanged	Occurs when an author element is added, removed, or modified.
Annotation.CargoChanged	Occurs when a Cargo element is added, removed, or modified.
AnnotationStore.AnchorChanged	Occurs when an anchor element on any annotation in the store changes.
AnnotationStore.AuthorChanged	Occurs when an author element on any annotation in the store changes.
AnnotationStore.CargoChanged	Occurs when a Cargo element on any annotation in the store changes.
AnnotationStore.StoreContentChanged	Occurs when an annotation is added to or deleted from the store.
Application.Activated	Occurs when an application becomes the foreground application.
Application.Deactivated	Occurs when an application stops being the foreground application.
Application.DispatcherUnhandledException	Occurs when an unhandled exception is raised.
Application.Exit	Occurs just before an application shuts down.
Application.FragmentNavigation	Occurs when FragmentNavigation is raised by one or more NavigationService objects within an application.
Application.LoadCompleted	Occurs when LoadCompleted is raised by one or more NavigationService objects within an application.
Application.Navigated	Occurs when Navigated is raised by one or more NavigationService objects within an application.
Application.Navigating	Occurs when Navigating is raised by one or more NavigationService objects within an application.
Application.NavigationProgress	Occurs when NavigationProgress is raised by one or more NavigationService objects within an application.
Application.NavigationStopped	Occurs when NavigationStopped is raised by one or more NavigationService objects within an application.
Application.SessionEnding	Occurs when the user ends the Windows session by logging off or by shutting down the operating system.
Application.Startup	Occurs when the Run method of the Application object is called.
BitmapDecoder.DownloadCompleted	Occurs when a BitmapDecoder has finished downloading bitmap content.
BitmapDecoder.DownloadProgress	Occurs when a BitmapDecoder has made progress downloading bitmap content.
BitmapSource.DownloadCompleted	Occurs when the bitmap content has been completely downloaded.
BitmapSource.DownloadProgress	Occurs when the download progress of the bitmap content has changed.
ButtonBase.Click	Occurs when a button is clicked.
Clock.CurrentGlobalSpeedInvalidated	Occurs when the clock's speed is updated.
Clock.CurrentStateInvalidated	Occurs when the clock's CurrentState property is updated.
Clock.CurrentTimeInvalidated	Occurs when the clock's CurrentTime becomes invalid.
CollectionView.CurrentChanged	Occurs after the CurrentItem has been changed.
CollectionView.CurrentChanging	Occurs when the currency is changing.
CollectionViewSource.Filter	Provides filtering logic.
ComboBox.DropDownClosed	Occurs when the drop-down portion of the combo box is no longer visible.
ComboBox.DropDownOpened	Occurs when the pop-up list of a combo box opens.
CommandBinding.CanExecute	Occurs when the command that is associated with this CommandBinding initiates a check to determine whether the command can be executed on the command target.
CommandBinding.Executed	Occurs when the command that is associated with this CommandBinding executes.
CommandBinding.PreviewCanExecute	Occurs when the command that is associated with this CommandBinding initiates a check to determine whether the command can be executed on the current command target.
CommandBinding.PreviewExecuted	Occurs when the command that is associated with this CommandBinding executes.
ContentElement.DragEnter	Occurs when the input system reports an underlying drag event that has this element as the drag target.
ContentElement.DragLeave	Occurs when the input system reports an underlying drag event that has this element as the drag origin.
ContentElement.DragOver	Occurs when the input system reports an underlying drag event that has this element as the potential drop target.
ContentElement.Drop	Occurs when the input system reports an underlying drop event that has this element as the drop target.
ContentElement.GiveFeedback	Occurs when the input system reports an underlying drag-and-drop event that involves this element.
ContentElement.GotFocus	Occurs when this element gets logical focus.
ContentElement.GotKeyboardFocus	Occurs when the keyboard is focused on this element.
ContentElement.GotMouseCapture	Occurs when this element captures the mouse.
ContentElement.GotStylusCapture	Occurs when this element captures the stylus.
ContentElement.IsEnabledChanged	Occurs when the value of the IsEnabled property on this element changes.
ContentElement.IsKeyboardFocusedChanged	Occurs when the value of the IsKeyboardFocused property changes on this element.
ContentElement.IsKeyboardFocusWithinChanged	Occurs when the value of the IsKeyboardFocusWithinChanged property changes on this element.
ContentElement.IsMouseCapturedChanged	Occurs when the value of the IsMouseCaptured property changes on this element.
ContentElement.IsMouseCaptureWithinChanged	Occurs when the value of the IsMouseCaptureWithinProperty field changes on this element.
ContentElement.IsMouseDirectlyOverChanged	Occurs when the value of the IsMouseDirectlyOver property changes on this element.
ContentElement.IsStylusCapturedChanged	Occurs when the value of the IsStylusCaptured property changes on this element.
ContentElement.IsStylusCaptureWithinChanged	Occurs when the value of the IsStylusCaptureWithin property changes on this element.
ContentElement.IsStylusDirectlyOverChanged	Occurs when the value of the IsStylusDirectlyOver property changes on this element.
ContentElement.KeyDown	Occurs when a key is pressed while the keyboard is focused on this element.
ContentElement.KeyUp	Occurs when a key is released while the keyboard is focused on this element.
ContentElement.LostFocus	Occurs when this element loses logical focus.
ContentElement.LostKeyboardFocus	Occurs when the keyboard is no longer focused on this element.
ContentElement.LostMouseCapture	Occurs when this element loses mouse capture.
ContentElement.LostStylusCapture	Occurs when this element loses stylus capture.
ContentElement.MouseDown	Occurs when any mouse button is pressed while the mouse pointer is over this element. If the ContentElement is a Button control, this event is not registered by Windows Presentation Foundation. Use the PreviewMouseDown or Click event instead.
ContentElement.MouseEnter	Occurs when the mouse pointer enters the bounds of this element.
ContentElement.MouseLeave	Occurs when the mouse pointer leaves the bounds of this element.
ContentElement.MouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element.
ContentElement.MouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element.
ContentElement.MouseMove	Occurs when the mouse pointer moves while it is over this element.
ContentElement.MouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element.
ContentElement.MouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element.
ContentElement.MouseUp	Occurs when any mouse button is released over this element.
ContentElement.MouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.
ContentElement.PreviewDragEnter	Occurs when the input system reports an underlying drag event that has this element as the drag target.
ContentElement.PreviewDragLeave	Occurs when the input system reports an underlying drag event that has this element as the drag origin.
ContentElement.PreviewDragOver	Occurs when the input system reports an underlying drag event that has this element as the potential drop target.
ContentElement.PreviewDrop	Occurs when the input system reports an underlying drop event that has this element as the drop target.
ContentElement.PreviewGiveFeedback	Occurs when a drag-and-drop operation is started.
ContentElement.PreviewGotKeyboardFocus	Occurs when the keyboard is focused on this element.
ContentElement.PreviewKeyDown	Occurs when a key is pressed while the keyboard is focused on this element.
ContentElement.PreviewKeyUp	Occurs when a key is released while the keyboard is focused on this element.
ContentElement.PreviewLostKeyboardFocus	Occurs when the keyboard is no longer focused on this element.
ContentElement.PreviewMouseDown	Occurs when any mouse button is pressed while the mouse pointer is over this element.
ContentElement.PreviewMouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element.
ContentElement.PreviewMouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element.
ContentElement.PreviewMouseMove	Occurs when the mouse pointer moves while the mouse pointer is over this element.
ContentElement.PreviewMouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element.
ContentElement.PreviewMouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element.
ContentElement.PreviewMouseUp	Occurs when any mouse button is released while the mouse pointer is over this element.
ContentElement.PreviewMouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.
ContentElement.PreviewQueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.
ContentElement.PreviewStylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element.
ContentElement.PreviewStylusButtonUp	Occurs when the stylus button is released while the pointer is over this element.
ContentElement.PreviewStylusDown	Occurs when the stylus touches the digitizer while the stylus is over this element.
ContentElement.PreviewStylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer.
ContentElement.PreviewStylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while over this element.
ContentElement.PreviewStylusMove	Occurs when the stylus moves while over the element. To raise this event, the stylus must move while being detected by the digitizer; otherwise, PreviewStylusInAirMove is raised instead.
ContentElement.PreviewStylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected.
ContentElement.PreviewStylusSystemGesture	Occurs when the user performs one of several stylus gestures.
ContentElement.PreviewStylusUp	Occurs when the user raises the stylus off the digitizer while the stylus is over this element.
ContentElement.PreviewTextInput	Occurs when this element gets text in a device-independent manner.
ContentElement.QueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.
ContentElement.QueryCursor	Occurs when the cursor is requested to display. This event is raised on an element each time the mouse pointer moves to a new location, which means that the cursor object might need to be changed based on its new position.
ContentElement.StylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element.
ContentElement.StylusButtonUp	Occurs when the stylus button is released while the pointer is over this element.
ContentElement.StylusDown	Occurs when the stylus touches the digitizer while the stylus is over this element.
ContentElement.StylusEnter	Occurs when the stylus enters the bounds of this element.
ContentElement.StylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer.
ContentElement.StylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while the stylus is over this element.
ContentElement.StylusLeave	Occurs when the stylus leaves the bounds of the element.
ContentElement.StylusMove	Occurs when the stylus moves over this element. To raise this event, the stylus must move while it is on the digitizer; otherwise, StylusInAirMove is raised instead.
ContentElement.StylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected, while the stylus is over this element.
ContentElement.StylusSystemGesture	Occurs when a user performs one of several stylus gestures.
ContentElement.StylusUp	Occurs when the user raises the stylus off the digitizer while the stylus is over this element.
ContentElement.TextInput	Occurs when this element gets text in a device-independent manner.
ContextMenu.Closed	Occurs when a particular instance of a context menu closes.
ContextMenu.Opened	Occurs when a particular instance of a context menu opens.
Control.MouseDoubleClick	Occurs when the control is double-clicked by the mouse.
Control.PreviewMouseDoubleClick	Occurs when the user clicks the mouse button two or more times.
DataSourceProvider.DataChanged	Occurs when the Data property has a new value.
DataTrigger.Invalidated
Dispatcher.ShutdownFinished	Occurs when the dispatcher finishes shutting down.
Dispatcher.ShutdownStarted	Occurs when the dispatcher begins to shut down.
Dispatcher.UnhandledException	Occurs when a thread exception is thrown and is uncaught during execution of a delegate by way of Invoke or BeginInvoke.
Dispatcher.UnhandledExceptionFilter	Occurs when a thread exception is thrown and is uncaught during execution of a delegate by way of Invoke or BeginInvoke when in the filter stage.
DispatcherHooks.DispatcherInactive	Occurs when the dispatcher has no more operations to process.
DispatcherHooks.OperationAborted	Occurs when an operation is aborted.
DispatcherHooks.OperationCompleted	Occurs when an operation completes.
DispatcherHooks.OperationPosted	Occurs when an operation is posted to the dispatcher.
DispatcherHooks.OperationPriorityChanged	Occurs when the priority of an operation is changed.
DispatcherOperation.Aborted	Occurs when the delegate on the dispatcher queue with which this DispatcherOperation is associated is aborted.
DispatcherOperation.Completed	Occurs when the delegate on the dispatcher queue to which this DispatcherOperation is associated completes.
DispatcherTimer.Tick	Occurs when the timer interval has elapsed and the timer is enabled.
DocumentPage.PageDestroyed	Occurs when the visual that depicts the DocumentPage is destroyed and can no longer be used for display.
DocumentPageView.PageConnected	Occurs when a Visual element of the DocumentPage is connected.
DocumentPageView.PageDisconnected	Occurs when a Visual element of the DocumentPage is disconnected.
DocumentPaginator.ComputePageCountCompleted	Occurs when a ComputePageCountAsync operation has finished.
DocumentPaginator.GetPageCompleted	Occurs when GetPageAsync has completed.
DocumentPaginator.PagesChanged	Occurs when the document content is changed.
DocumentReferenceCollection.CollectionChanged	Occurs when an element is added or removed.
DocumentViewerBase.PageViewsChanged	Occurs when the collection of DocumentPageView items that is associated with this viewer (represented by the PageViews property) changes.
DrawingAttributes.AttributeChanged	Occurs when a property in the DrawingAttributes object changes.
DrawingAttributes.PropertyDataChanged	Occurs when property data is added to or removed from the StrokeCollection.
DynamicDocumentPaginator.GetPageNumberCompleted	Occurs when GetPageNumberAsync has completed.
DynamicDocumentPaginator.PaginationCompleted	Occurs when all document content has been paginated.
DynamicDocumentPaginator.PaginationProgress	Occurs when one or more content pages have been paginated.
Expander.Collapsed	Occurs when the content window of an Expander control closes and only the header is visible.
Expander.Expanded	Occurs when the content window of an Expander control opens to display both its header and content.
FileDialog.FileOk	Occurs when the user selects a file name by clicking either the Open button of the OpenFileDialog or the Save button of the SaveFileDialog.
Frame.ContentRendered	Occurs after frame content has been rendered.
Frame.FragmentNavigation	Occurs when navigation to a XAML content fragment starts, which occurs after the source XAML page has been loaded.
Frame.LoadCompleted	Occurs when the entire source content has been loaded and parsed.
Frame.Navigated	Occurs when the source content is found and download begins.
Frame.Navigating	Occurs just before navigation starts.
Frame.NavigationProgress	Occurs periodically during a download to provide navigation progress information.
Frame.NavigationStopped	Occurs when the StopLoading method is called during navigation.
FrameworkContentElement.ContextMenuClosing	Occurs just before any context menu on the FrameworkContentElement is closed.
FrameworkContentElement.ContextMenuOpening	Occurs when any context menu on the FrameworkContentElement is opened.
FrameworkContentElement.DataContextChanged	Occurs when data context of the FrameworkContentElement changes.
FrameworkContentElement.Initialized	Occurs when the FrameworkContentElement is initialized. This coincides with cases where the value of the IsInitialized property changes from false (or undefined) to true.
FrameworkContentElement.Loaded	Occurs when the FrameworkContentElement is laid out, rendered, and ready for interaction.
FrameworkContentElement.SourceUpdated	Occurs when any associated data source participating in a binding on the FrameworkContentElement changes.
FrameworkContentElement.TargetUpdated	Occurs when any associated target property participating in a binding on the FrameworkContentElement changes.
FrameworkContentElement.ToolTipClosing	Occurs just before any tooltip on the FrameworkContentElement is closed.
FrameworkContentElement.ToolTipOpening	Occurs when any tooltip on the element is opened.
FrameworkContentElement.Unloaded	Occurs when the FrameworkContentElement is removed from an element tree of loaded elements.
FrameworkElement.ContextMenuClosing	Occurs just before any context menu on the FrameworkElement is closed.
FrameworkElement.ContextMenuOpening	Occurs when any context menu on the FrameworkElement is opened.
FrameworkElement.DataContextChanged	Occurs when the data context of the FrameworkElement changes.
FrameworkElement.Initialized	Occurs when the FrameworkElement is initialized. This coincides with cases where the value of the IsInitialized property changes from false (or undefined) to true.
FrameworkElement.Loaded	Occurs when the FrameworkElement is laid out, rendered, and ready for interaction.
FrameworkElement.RequestBringIntoView	Occurs when BringIntoView is called on this element.
FrameworkElement.SizeChanged	Occurs when either the ActualHeight or ActualWidth property changes value on the FrameworkElement.
FrameworkElement.SourceUpdated	Occurs when any associated data source that participates in a binding on the FrameworkElement changes.
FrameworkElement.TargetUpdated	Occurs when any associated target property that participates in a binding on the FrameworkElement changes.
FrameworkElement.ToolTipClosing	Occurs just before any tooltip on the FrameworkElement is closed.
FrameworkElement.ToolTipOpening	Occurs when any tooltip on the FrameworkElement is opened.
FrameworkElement.Unloaded	Occurs when the FrameworkElement is removed from within an element tree of loaded elements.
Freezable.Changed	Occurs when this Freezable object or an object it contains is modified.
GridViewColumnCollection.ColumnCollectionChanged
HwndHost.MessageHook	Occurs for each unhandled message that is received by the hosted window.
HwndSource.AutoResized	Occurs when layout causes the HwndSource to automatically resize.
HwndSource.Disposed	Occurs when the HwndSource object is disposed.
HwndSource.SizeToContentChanged	Occurs when the value of the SizeToContent property of the HwndSource object changes.
Hyperlink.Click	Occurs when the left mouse button is clicked.
Hyperlink.RequestNavigate	Occurs when navigation events are requested.
ICollectionView.CurrentChanged	When implementing the ICollectionView interface, raise this event after the current item has been changed.
ICommand.CanExecuteChanged	Occurs when the ability of the command to execute changes.
IInputElement.GotKeyboardFocus	Occurs when the keyboard is focused on this element.
IInputElement.GotMouseCapture	Occurs when the element captures the mouse.
IInputElement.GotStylusCapture	Occurs when the element captures the stylus.
IInputElement.KeyDown	Occurs when a key is pressed while the keyboard is focused on the element.
IInputElement.KeyUp	Occurs when a key is released while the keyboard is focused on the element.
IInputElement.LostKeyboardFocus	Occurs when the keyboard is no longer focused on the element.
IInputElement.LostMouseCapture	Occurs when the element loses mouse capture.
IInputElement.LostStylusCapture	Occurs when the element loses stylus capture.
IInputElement.MouseEnter	Occurs when the mouse pointer enters the bounds of the element.
IInputElement.MouseLeave	Occurs when the mouse pointer leaves the bounds of the element.
IInputElement.MouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over the element.
IInputElement.MouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over the element.
IInputElement.MouseMove	Occurs when the mouse pointer moves while the mouse pointer is over the element.
IInputElement.MouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over the element.
IInputElement.MouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over the element.
IInputElement.MouseWheel	Occurs when the mouse wheel moves while the mouse pointer is over the element.
IInputElement.PreviewGotKeyboardFocus	Occurs when the keyboard is focused on the element.
IInputElement.PreviewKeyDown	Occurs when a key is pressed while the keyboard is focused on the element.
IInputElement.PreviewKeyUp	Occurs when a key is released while the keyboard is focused on the element.
IInputElement.PreviewLostKeyboardFocus	Occurs when the keyboard is no longer focused on the element.
IInputElement.PreviewMouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over the element.
IInputElement.PreviewMouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over the element.
IInputElement.PreviewMouseMove	Occurs when the mouse pointer moves while the mouse pointer is over the element.
IInputElement.PreviewMouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over the element.
IInputElement.PreviewMouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over the element.
IInputElement.PreviewMouseWheel	Occurs when the mouse wheel moves while the mouse pointer is over the element.
IInputElement.PreviewStylusButtonDown	Occurs when the stylus button is pressed down while the stylus is over the element.
IInputElement.PreviewStylusButtonUp	Occurs when the stylus button is released while the stylus is over the element.
IInputElement.PreviewStylusDown	Occurs when the stylus touches the digitizer while over the element.
IInputElement.PreviewStylusInAirMove	Occurs when the stylus moves over an element without touching the digitizer.
IInputElement.PreviewStylusInRange	Occurs when the stylus is close enough to the digitizer to be detected.
IInputElement.PreviewStylusMove	Occurs when the stylus moves while the stylus is over the element.
IInputElement.PreviewStylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected.
IInputElement.PreviewStylusSystemGesture	Occurs when one of several stylus gestures are detected, for example, Tap or Drag.
IInputElement.PreviewStylusUp	Occurs when the stylus is raised off the digitizer while over the element.
IInputElement.PreviewTextInput	Occurs when the element gets text in a device-independent manner.
IInputElement.StylusButtonDown	Occurs when the stylus button is pressed while the stylus is over the element.
IInputElement.StylusButtonUp	Occurs when the stylus button is released while the stylus is over the element.
IInputElement.StylusDown	Occurs when the stylus touches the digitizer while over the element.
IInputElement.StylusEnter	Occurs when the stylus cursor enters the bounds of the element.
IInputElement.StylusInAirMove	Occurs when the stylus moves over an element without touching the digitizer.
IInputElement.StylusInRange	Occurs when the stylus is close enough to the digitizer to be detected.
IInputElement.StylusLeave	Occurs when the stylus cursor leaves the bounds of the element.
IInputElement.StylusMove	Occurs when the stylus cursor moves over the element.
IInputElement.StylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected.
IInputElement.StylusSystemGesture	Occurs when one of several stylus gestures are detected, for example, Tap or Drag.
IInputElement.StylusUp	Occurs when the stylus is raised off the digitizer while over the element.
IInputElement.TextInput	Occurs when the element gets text in a device-independent manner.
IncrementalLassoHitTester.SelectionChanged	Occurs when the lasso path selects or unselects an ink stroke.
IncrementalStrokeHitTester.StrokeHit	Occurs when the IncrementalStrokeHitTester intersects an ink stroke.
InkCanvas.ActiveEditingModeChanged	Occurs when the current editing mode changes.
InkCanvas.DefaultDrawingAttributesReplaced	Occurs when the DefaultDrawingAttributes property is replaced.
InkCanvas.EditingModeChanged	Occurs when the EditingMode property of an InkCanvas object has been changed.
InkCanvas.EditingModeInvertedChanged	Occurs when the EditingModeInverted property of an InkCanvas object has been changed.
InkCanvas.Gesture	Occurs when the InkCanvas detects a gesture.
InkCanvas.SelectionChanged	Occurs when the selection on the InkCanvas changes.
InkCanvas.SelectionChanging	Occurs when a new set of ink strokes or elements is being selected.
InkCanvas.SelectionMoved	Occurs when a selection of strokes or elements has been moved by the user.
InkCanvas.SelectionMoving	Occurs at the onset of the selected strokes and elements being moved.
InkCanvas.SelectionResized	Occurs when a selection of strokes or elements has been resized by the user.
InkCanvas.SelectionResizing	Occurs at the onset of the selected strokes and elements being resized.
InkCanvas.StrokeCollected	Occurs when a stroke that is drawn by the user is added to the Strokes property.
InkCanvas.StrokeErased	Occurs when the user erases a stroke.
InkCanvas.StrokeErasing	Occurs just before the user erases a stroke.
InkCanvas.StrokesReplaced	Occurs when the Strokes property is replaced.
INotifyCollectionChanged.CollectionChanged	Occurs when the collection changes, either by adding or removing an item.
InputLanguageManager.InputLanguageChanged	Occurs when a change of input language is completed.
InputLanguageManager.InputLanguageChanging	Occurs when a change of input language is initiated.
InputManager.HitTestInvalidatedAsync	Occurs when the result of a hit-test may have changed.
InputManager.PostNotifyInput	Occurs after the PreNotifyInput handlers have finished processing the raw input and the corresponding Windows Presentation Foundation events have been raised.
InputManager.PostProcessInput	Occurs after the PreNotifyInput handlers have finished processing the raw input.
InputManager.PreNotifyInput	Occurs when the PreProcessInput handlers have finished processing the raw input, if the raw input was not cancelled.
InputManager.PreProcessInput	Occurs when the InputManager starts to process the raw input item.
InputMethod.StateChanged	Occurs when the input method state (represented by the ImeState property) changes.
ItemContainerGenerator.ItemsChanged	Raised by a ItemContainerGenerator to inform layouts that the Items collection has changed.
ItemContainerGenerator.StatusChanged	Raised by a ItemContainerGenerator to inform controls that its status has changed.
ListBoxItem.Selected	Occurs when a ListBoxItem is selected.
ListBoxItem.Unselected	Occurs when a ListBoxItem selection is cancelled.
MediaElement.BufferingEnded	Occurs when media buffering has ended.
MediaElement.BufferingStarted	Occurs when media buffering has begun.
MediaElement.MediaEnded	Occurs when the media has ended.
MediaElement.MediaFailed	Occurs when a media error is encountered.
MediaElement.MediaOpened	Occurs when media loading has finished.
MediaPlayer.BufferingEnded	Occurs when media buffering has finished.
MediaPlayer.BufferingStarted	Occurs when media buffering has started.
MediaPlayer.MediaEnded	Occurs when the media has finished playback.
MediaPlayer.MediaFailed	Occurs when a media error is encountered.
MediaPlayer.MediaOpened	Occurs when the media is opened.
MenuItem.Checked	Occurs when a menu item is checked.
MenuItem.Click	Occurs when a menu item is clicked or selected by using a shortcut key or access key that is defined for the menu item.
MenuItem.SubmenuClosed	Occurs when the state of the IsSubmenuOpen property changes to false.
MenuItem.SubmenuOpened	Occurs when the state of the IsSubmenuOpen property changes to true.
MenuItem.Unchecked	Occurs when a menu item check box is cleared.
MultiDataTrigger.Invalidated
MultiTrigger.Invalidated
NavigationService.FragmentNavigation	Occurs when navigation to a XAML content fragment begins, which takes place after the source XAML page has been loaded.
NavigationService.LoadCompleted	Occurs when the entire source content has been loaded and parsed.
NavigationService.Navigated	Occurs when the source content is found and download begins.
NavigationService.Navigating	Occurs just before navigation starts.
NavigationService.NavigationProgress	Occurs periodically during a download to provide navigation progress information.
NavigationService.NavigationStopped	Occurs when the StopLoading method of the NavigationService object is called.
NavigationWindow.FragmentNavigation	Occurs when navigation to a XAML content fragment starts, which occurs after the source XAML page has been loaded.
NavigationWindow.LoadCompleted	Occurs when the entire source content has been loaded and parsed.
NavigationWindow.Navigated	Occurs when the source content is found and download begins.
NavigationWindow.Navigating	Occurs just before navigation starts.
NavigationWindow.NavigationProgress	Occurs periodically during a download to provide navigation progress information.
NavigationWindow.NavigationStopped	Occurs when the StopLoading method is called during navigation.
ObservableCollection`1.CollectionChanged
PackageDigitalSignatureManager.InvalidSignatureEvent	Occurs when VerifySignatures encounters an invalid signature.
PageContent.GetPageRootCompleted	Occurs when GetPageRootAsync has completed.
PageFunction`1.Return
PasswordBox.PasswordChanged	Occurs when the value of the Password property changes.
Popup.Closed	Occurs when the IsOpen property changes to false.
Popup.Opened	Occurs when the IsOpen property changes to true.
PresentationSource.ContentRendered	Occurs when content is rendered and ready for user interaction.
PrintDialogBase.PrinterChanged
PrintDialogBase.PrintTicketChanged
PrintDialogBase.PrintTicketChanging
PrintDialogBase.PropertyChanged
RangeBase.ValueChanged	Occurs when the range value changes.
RoutedCommand.CanExecuteChanged	Occurs when the ability of the command to execute on the current command target has changed.
ScrollBar.Scroll	Occurs one or more times as content scrolls in a scroll bar when the user moves the Thumb control by using the mouse.
ScrollViewer.ScrollChanged	Occurs when changes are detected to the scroll position, extent, or viewport size.
Selector.SelectionChanged	Occurs when the selection of a Selector changes.
SerializerWriter.WritingCompleted	When overridden in a derived class, occurs when a write operation finishes.
SerializerWriter.WritingPrintTicketRequired	When overridden in a derived class, occurs just before a PrintTicket is added to a stream by a Write or WriteAsync method.
SerializerWriter.WritingProgressChanged	When overridden in a derived class, occurs when the SerializerWriter updates its progress.
Stroke.DrawingAttributesChanged	Occurs when the DrawingAttributes that is associated with the Stroke object changes.
Stroke.DrawingAttributesReplaced	Occurs when the drawing attributes of a Stroke object are replaced.
Stroke.Invalidated	Occurs when the appearance of the Stroke changes.
Stroke.PropertyDataChanged	Occurs when the custom properties on a Stroke object change.
Stroke.StylusPointsChanged	Occurs when the StylusPoints property changes.
Stroke.StylusPointsReplaced	Occurs when the StylusPoints property is assigned a new StylusPointCollection.
StrokeCollection.PropertyDataChanged	Occurs when a custom property is added to or removed from the StrokeCollection.
StrokeCollection.StrokesChanged	Occurs when a Stroke in the collection changes.
StylusPointCollection.Changed	Occurs when the StylusPointCollection changes.
TextBoxBase.SelectionChanged	Occurs when the text selection has changed.
TextBoxBase.TextChanged	Occurs when content changes in the text element.
TextRange.Changed	Occurs when the range is repositioned to cover a new span of content.
Thumb.DragCompleted	Occurs when the Thumb control loses mouse capture.
Thumb.DragDelta	Occurs one or more times as the mouse changes position when a Thumb control has logical focus and mouse capture.
Thumb.DragStarted	Occurs when a Thumb control receives logical focus and mouse capture.
Timeline.CurrentGlobalSpeedInvalidated	Occurs when the rate at which time progresses for the timeline's clock changes.
Timeline.CurrentStateInvalidated	Occurs when the CurrentState property of the timeline's Clock is updated.
Timeline.CurrentTimeInvalidated	Occurs when the CurrentTime property of the timeline's Clock is updated.
ToggleButton.Checked	Occurs when a toggle button is checked.
ToggleButton.Indeterminate	Occurs when the state of a toggle button is neither on nor off.
ToggleButton.Unchecked	Occurs when a toggle button is unchecked.
ToolTip.Closed	Occurs when a tooltip is closed and is no longer visible.
ToolTip.Opened	Occurs when a tooltip becomes visible.
TreeView.SelectedItemChanged	Occurs when the selected item changes.
TreeViewItem.Collapsed	Occurs when the IsExpanded property changes from true to false.
TreeViewItem.Expanded	Occurs when the IsExpanded property changes from false to true.
TreeViewItem.Selected	Occurs when the IsSelected property of a TreeViewItem changes from false to true.
TreeViewItem.Unselected	Occurs when the IsSelected property of a TreeViewItem changes from true to false.
Trigger.Invalidated
UIElement.DragEnter	Occurs when the input system reports an underlying drag event that has this element as the drag target.
UIElement.DragLeave	Occurs when the input system reports an underlying drag event that has this element as the drag origin.
UIElement.DragOver	Occurs when the input system reports an underlying drag event that has this element as the potential drop target.
UIElement.Drop	Occurs when the input system reports an underlying drop event that has this element as the drop target.
UIElement.GiveFeedback	Occurs when the input system reports an underlying drag-and-drop event that involves this element.
UIElement.GotFocus	Occurs when this element gets logical focus.
UIElement.GotKeyboardFocus	Occurs when the keyboard is focused on this element.
UIElement.GotMouseCapture	Occurs when this element captures the mouse.
UIElement.GotStylusCapture	Occurs when this element captures the stylus.
UIElement.IsEnabledChanged	Occurs when the value of the IsEnabled property on this element changes.
UIElement.IsHitTestVisibleChanged	Occurs when the value of the IsHitTestVisible dependency property changes on this element.
UIElement.IsKeyboardFocusedChanged	Occurs when the value of the IsKeyboardFocused property changes on this element.
UIElement.IsKeyboardFocusWithinChanged	Occurs when the value of the IsKeyboardFocusWithinChanged property changes on this element.
UIElement.IsMouseCapturedChanged	Occurs when the value of the IsMouseCaptured property changes on this element.
UIElement.IsMouseDirectlyOverChanged	Occurs when the value of the IsMouseDirectlyOver property changes on this element.
UIElement.IsStylusCapturedChanged	Occurs when the value of the IsStylusCaptured property changes on this element.
UIElement.IsStylusDirectlyOverChanged	Occurs when the value of the IsStylusDirectlyOver property changes on this element.
UIElement.IsVisibleChanged	Occurs when the value of the IsVisible property changes on this element.
UIElement.KeyDown	Occurs when a key is pressed while the keyboard is focused on this element.
UIElement.KeyUp	Occurs when a key is released while the keyboard is focused on this element.
UIElement.LayoutUpdated	Occurs when the layout of the various visual elements that are associated with the current Dispatcher changes.
UIElement.LostFocus	Occurs when this element loses logical focus.
UIElement.LostKeyboardFocus	Occurs when the keyboard is no longer focused on this element.
UIElement.LostMouseCapture	Occurs when this element loses mouse capture.
UIElement.LostStylusCapture	Occurs when this element loses stylus capture.
UIElement.MouseDown	Occurs when any mouse button is pressed while the pointer is over this element. If the UIElement is a Button control, this event is not registered by Windows Presentation Foundation. Use the PreviewMouseDown or Click event instead.
UIElement.MouseEnter	Occurs when the mouse pointer enters the bounds of this element.
UIElement.MouseLeave	Occurs when the mouse pointer leaves the bounds of this element.
UIElement.MouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element.
UIElement.MouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element.
UIElement.MouseMove	Occurs when the mouse pointer moves while over this element.
UIElement.MouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element.
UIElement.MouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element.
UIElement.MouseUp	Occurs when any mouse button is released over this element.
UIElement.MouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.
UIElement.PreviewDragEnter	Occurs when the input system reports an underlying drag event that has this element as the drag target.
UIElement.PreviewDragLeave	Occurs when the input system reports an underlying drag event that has this element as the drag origin.
UIElement.PreviewDragOver	Occurs when the input system reports an underlying drag event that has this element as the potential drop target.
UIElement.PreviewDrop	Occurs when the input system reports an underlying drop event that has this element as the drop target.
UIElement.PreviewGiveFeedback	Occurs when a drag-and-drop operation is started.
UIElement.PreviewGotKeyboardFocus	Occurs when the keyboard is focused on this element.
UIElement.PreviewKeyDown	Occurs when a key is pressed while the keyboard is focused on this element.
UIElement.PreviewKeyUp	Occurs when a key is released while the keyboard is focused on this element.
UIElement.PreviewLostKeyboardFocus	Occurs when the keyboard is no longer focused on this element.
UIElement.PreviewMouseDown	Occurs when any mouse button is pressed while the pointer is over this element.
UIElement.PreviewMouseLeftButtonDown	Occurs when the left mouse button is pressed while the mouse pointer is over this element.
UIElement.PreviewMouseLeftButtonUp	Occurs when the left mouse button is released while the mouse pointer is over this element.
UIElement.PreviewMouseMove	Occurs when the mouse pointer moves while the mouse pointer is over this element.
UIElement.PreviewMouseRightButtonDown	Occurs when the right mouse button is pressed while the mouse pointer is over this element.
UIElement.PreviewMouseRightButtonUp	Occurs when the right mouse button is released while the mouse pointer is over this element.
UIElement.PreviewMouseUp	Occurs when any mouse button is released while the mouse pointer is over this element.
UIElement.PreviewMouseWheel	Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.
UIElement.PreviewQueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.
UIElement.PreviewStylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element.
UIElement.PreviewStylusButtonUp	Occurs when the stylus button is released while the pointer is over this element.
UIElement.PreviewStylusDown	Occurs when the stylus touches the digitizer while the stylus is over this element.
UIElement.PreviewStylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer.
UIElement.PreviewStylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while over this element.
UIElement.PreviewStylusMove	Occurs when the stylus moves while over the element. The stylus must move while being detected by the digitizer to raise this event; otherwise, PreviewStylusInAirMove is raised instead.
UIElement.PreviewStylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected.
UIElement.PreviewStylusSystemGesture	Occurs when a user performs one of several stylus gestures.
UIElement.PreviewStylusUp	Occurs when the user raises the stylus off the digitizer while the stylus is over this element.
UIElement.PreviewTextInput	Occurs when the element gets text in a device-independent manner.
UIElement.QueryContinueDrag	Occurs when there is a change in the keyboard or mouse button state during a drag-and-drop operation.
UIElement.QueryCursor	Occurs when the cursor is requested to display. This event is raised on an element each time the mouse pointer moves to a new location, which means that the cursor object might need to be changed based on its new position.
UIElement.StylusButtonDown	Occurs when the stylus button is pressed while the pointer is over this element.
UIElement.StylusButtonUp	Occurs when the stylus button is released while the pointer is over this element.
UIElement.StylusDown	Occurs when the stylus touches the digitizer while the stylus is over this element.
UIElement.StylusEnter	Occurs when the stylus enters the bounds of this element.
UIElement.StylusInAirMove	Occurs when the stylus moves over an element without actually touching the digitizer.
UIElement.StylusInRange	Occurs when the stylus is close enough to the digitizer to be detected, while over this element.
UIElement.StylusLeave	Occurs when the stylus leaves the bounds of the element.
UIElement.StylusMove	Occurs when the stylus moves over this element. The stylus must move while on the digitizer to raise this event; otherwise, StylusInAirMove is raised instead.
UIElement.StylusOutOfRange	Occurs when the stylus is too far from the digitizer to be detected, while over this element.
UIElement.StylusSystemGesture	Occurs when a user performs one of several stylus gestures.
UIElement.StylusUp	Occurs when the user raises the stylus off the digitizer while it is over this element.
UIElement.TextInput	Occurs when the element gets text in a device-independent manner.
Window.Activated	Occurs when a window becomes the foreground window.
Window.Closed	Occurs when the window as about to close.
Window.Closing	Occurs directly after Close is called, and can be handled to cancel window closure.
Window.ContentRendered	Occurs after a window's content has been rendered.
Window.Deactivated	Occurs when a window becomes a background window.
Window.LocationChanged	Occurs when the window's location changes.
Window.SourceInitialized	Occurs after the window's HwndSource object is created, but before the window is shown.
Window.StateChanged	Occurs when the window's WindowState property changes.