This documentation is archived and is not being maintained.

UIElement3D.MouseLeave Event

Occurs when the mouse pointer leaves the bounds of this element.

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

public event MouseEventHandler MouseLeave
<object MouseLeave="MouseEventHandler" .../>



Identifier field


Routing strategy




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

MouseLeave is a Routed Events Overview that uses the direct event handling routing strategy. Direct routed events are not raised along a route; instead, they are handled in the same element where they are raised.

Although MouseLeave tracks when the mouse leaves an element, this event more literally reports that the IsMouseOver property value has changed from true to false on this element.

This event creates an alias for the Mouse.MouseLeave attached event for this class, so that MouseLeave is part of the class members list when UIElement3D is inherited as a base element. Event handlers that are attached to the MouseLeave event are attached to the underlying Mouse.MouseLeave attached event and receive the same event data instance.

MouseLeave is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5 SP1, 3.0 SP1