TabControl.Deselecting Event

Note: This event is new in the .NET Framework version 2.0.

Occurs before a tab is deselected, enabling a handler to cancel the tab change.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in

public event TabControlCancelEventHandler Deselecting
/** @event */
public void add_Deselecting (TabControlCancelEventHandler value)

/** @event */
public void remove_Deselecting (TabControlCancelEventHandler value)

JScript supports the use of events, but not the declaration of new ones.

When the current tab changes in a TabControl, the following events occur in the following order.

These events let you perform tasks such as canceling a tab change if a TabPage is in an invalid state or updating the state of a newly displayed TabPage.

The current tab changes when the user clicks a tab, when you call the DeselectTab or SelectTab method, or when you change the value of the SelectedIndex or SelectedTab property.

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