UIElement.PreviewTouchDown Event
Definition
Important
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Occurs when a finger touches the screen while the finger is over this element.
public:
event EventHandler<System::Windows::Input::TouchEventArgs ^> ^ PreviewTouchDown;public event EventHandler<System.Windows.Input.TouchEventArgs> PreviewTouchDown;member this.PreviewTouchDown : EventHandler<System.Windows.Input.TouchEventArgs> Public Custom Event PreviewTouchDown As EventHandler(Of TouchEventArgs) Event Type
Remarks
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.
Routed Event Information
| Item | Value |
|---|---|
| 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.
