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UIElement.PreviewTouchDown Event

.NET Framework (current version)
 

Occurs when a finger touches the screen while the finger is over this element.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

member PreviewTouchDown : IEvent<EventHandler<TouchEventArgs>,
    TouchEventArgs>

By default, the PreviewTouchDown and TouchDown events do not occur until a finger touches the screen and moves. Pressing a finger on the screen and holding it without moving it causes the press and hold behavior of a Stylus. The press and hold behavior is equivalent to a mouse right-click.

To cause the PreviewTouchDown and TouchDown events to occur as soon as a finger touches the screen, set the Stylus.IsPressAndHoldEnabled attached property to false for this element.

Identifier field

PreviewTouchDownEvent

Routing strategy

Tunneling

Delegate

EventHandler<'TEventArgs> of type TouchEventArgs.

  • The corresponding bubbling event is TouchDown.

  • Override OnPreviewTouchDown to implement class handling for this event in derived classes.

.NET Framework
Available since 4.0
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