'Declaration Public Event BeforeGroupCollapsed As EventHandler(Of CancelableGroupEventArgs)
public event EventHandler<CancelableGroupEventArgs> BeforeGroupCollapsed
The event handler receives an argument of type CancelableGroupEventArgs containing data related to this event. The following CancelableGroupEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| Cancel (Inherited from System.ComponentModel.CancelEventArgs) | |
| Group | The group that is being expanded or collapsed. |
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