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UIElement.PreviewMouseWheel Event

Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.

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

public event MouseWheelEventHandler PreviewMouseWheel
/** @event */
public final void add_PreviewMouseWheel (MouseWheelEventHandler value)

/** @event */
public final void remove_PreviewMouseWheel (MouseWheelEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
<object PreviewMouseWheel="MouseWheelEventHandler" .../>

Identifier field


Routing strategy




Focus or mouse capture take precedence over where the mouse pointer is; therefore, if you receive this event from a focused or captured element, the mouse pointer might actually be over another element.

This event creates an alias for the Mouse.PreviewMouseWheel attached event for this class, so that PreviewMouseMove is part of the class members list when UIElement is inherited as a base element. Event handlers that are attached to the PreviewMouseMove event are attached to the underlying Mouse.PreviewMouseWheel attached event and receive the same event data instance.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0