• Article

ComboBox.OnMouseEnter Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Provides handling for the MouseEnter event that occurs when the mouse pointer enters this control.

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

Syntax

'Declaration
Protected Overrides Sub OnMouseEnter ( _
    e As MouseEventArgs _
)

protected override void OnMouseEnter(
    MouseEventArgs e
)

Parameters

Remarks

This implementation updates the visual state of the ComboBox when the mouse pointer is over the control.

The OnMouseEnter method is called before any event handler for the MouseEnter event is called. This method allows derived classes to handle the MouseEnter event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnMouseEnter in a derived class, make sure to call the base class’s OnMouseEnter method so that registered delegates receive the event.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.