ContentElement::PreviewKeyDown Event
Occurs when a key is pressed while the keyboard is focused on this element.
Assembly: PresentationCore (in PresentationCore.dll)
public: event KeyEventHandler^ PreviewKeyDown { virtual void add(KeyEventHandler^ value) sealed; virtual void remove(KeyEventHandler^ value) sealed; }
Implements
IInputElement::PreviewKeyDownKey handling interacts with other platform features such as commanding and text composition. The KeyDown event is a lower-level text input event that might not behave as expected on certain controls. This is because some controls have control compositing or class handling that provides a higher-level version of text input handling and related events.
This event creates an alias for the Keyboard::PreviewKeyDown attached event for this class, so that PreviewKeyDown is part of the class members list when ContentElement is inherited as a base element. Event handlers that are attached to the PreviewKeyDown event are attached to the underlying Keyboard::PreviewKeyDown attached event and receive the same event data instance.
Identifier field | |
Routing strategy | Tunneling |
Delegate |
The corresponding bubbling event is KeyDown.
Override OnPreviewKeyDown to implement class handling for this event in derived classes.
Available since 3.0