ExpandedStateChanging Event

Occurs before the control transitions from the collapsed state to the expanded state, or from the expanded state to the collapsed state.

Syntax

Visual Basic

'Declaration
 
Public Event ExpandedStateChanging As ExpandedStateChangingHandler

C#

public event ExpandedStateChangingHandler ExpandedStateChanging

Event Data

The event handler receives an argument of type ExpandedStateChangingEventArgs containing data related to this event. The following ExpandedStateChangingEventArgs properties provide information specific to this event.

Property	Description
Action (Inherited from Infragistics.Win.UIActionNotification.UIActionCancelableEventArgs)
Cancel (Inherited from System.ComponentModel.CancelEventArgs)
Collapsing	Returns true if the Expanded property is transitioning from true to false.
Expanding	Returns true if the Expanded property is transitioning from false to true.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2