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TabControl.OnEnter Method

Raises the Enter event of the TabControl.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

protected override void OnEnter (
	EventArgs e
)
protected void OnEnter (
	EventArgs e
)
protected override function OnEnter (
	e : EventArgs
)

Parameters

e

An EventArgs that contains the event data.

In Microsoft .NET Framework version 2.0, this method also raises the Enter event of the current TabPage. In .NET Framework 2.0, the tab is considered part of the tab page for determining when the Enter and Leave events of the TabPage occur. In earlier versions of the .NET Framework, the Enter and Leave events of the TabPage do not occur when focus enters or leaves a tab, but only when focus enters or leaves the client rectangle of the tab page.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnEnter method also enables derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors When overriding OnEnter in a derived class, be sure to call the base class's OnEnter method so that registered delegates receive the event.

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

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

.NET Framework

Supported in: 2.0, 1.1, 1.0
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