Skip to main content
.NET Framework Class Library
KeyboardPreviewKeyDown Attached Event

Occurs when a key on the keyboard is pressed.

Namespace:   System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Syntax
See [%$TOPIC/ms523131_en-us_VS_110_1_0_0_0_0%], [%$TOPIC/ms523131_en-us_VS_110_1_0_0_0_1%]
See [%$TOPIC/ms523131_en-us_VS_110_1_0_1_0_0%], [%$TOPIC/ms523131_en-us_VS_110_1_0_1_0_1%]
See [%$TOPIC/ms523131_en-us_VS_110_1_0_2_0_0%], [%$TOPIC/ms523131_en-us_VS_110_1_0_2_0_1%]
See [%$TOPIC/ms523131_en-us_VS_110_1_0_3_0_0%], [%$TOPIC/ms523131_en-us_VS_110_1_0_3_0_1%]
See [%$TOPIC/ms523131_en-us_VS_110_1_0_4_0_0%], [%$TOPIC/ms523131_en-us_VS_110_1_0_4_0_1%]
<object Keyboard.PreviewKeyDown="[%$TOPIC/ms523131_en-us_VS_110_1_0_5_0_0%]" .../>
Routed Event Information

Identifier field

PreviewKeyDownEvent

Routing strategy

Tunneling

Delegate

KeyEventHandler

  • The corresponding bubbling event is KeyDown.

Remarks

This is an attached event. WPF implements attached events as routed events. Attached events are fundamentally a XAML language concept for referencing events that can be handled on objects that do not define that event, which WPF expands upon by also enabling the event to traverse a route. Attached events do not have a direct handling syntax in code; to attach handlers for a routed event in code, you use a designated Add*Handler method. For details, see Attached Events Overview.

Version Information

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1