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UIElement.PreviewTouchDown Event

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

Namespace:  System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
public event EventHandler<TouchEventArgs> PreviewTouchDown
<object PreviewTouchDown="EventHandler<TouchEventArgs>" .../>

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.

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.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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