Expand Minimize

UIElement.OnMouseEnter Method

Invoked when an unhandled Mouse.MouseEnter attached event is raised on this element. Implement this method to add class handling for this event.

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

protected virtual void OnMouseEnter(
	MouseEventArgs e
)
You cannot use methods in XAML.

Parameters

e
Type: System.Windows.Input.MouseEventArgs

The MouseEventArgs that contains the event data.

This method has no default implementation. Because an intermediate class in the inheritance might implement this method, we recommend that you call the base implementation in your implementation. You may call base either before or after your special handling, depending on your requirements.

The purpose of this method is similar to the common language runtime (CLR) event pattern On* methods: this method provides the means to handle the matching event from derived classes by establishing a class handler instead of an instance handler. In this case the matching event is a routed event, with a direct routing strategy. Marking the event as handled is still useful for preventing the typical instance handlers (those that do not specify handledEventsToo) from being invoked.

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, 3.0
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft