windowsforms-devexpress-dot-xtrabars-dot-docking-dot-dockpanel-8305ec24.md
Fires after the dock panel’s visible state has been changed.
Namespace : DevExpress.XtraBars.Docking
Assembly : DevExpress.XtraBars.v25.2.dll
NuGet Package : DevExpress.Win.Navigation
public event VisibilityChangedEventHandler VisibilityChanged
Public Event VisibilityChanged As VisibilityChangedEventHandler
The VisibilityChanged event's data class is VisibilityChangedEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| OldVisibility | Gets the previous visible state of the panel. |
| Panel | Gets the processed dock panel. Inherited from DockPanelEventArgs. |
| Visibility | Gets the current visible state of the panel. |
A panel’s visible state is specified by its DockPanel.Visibility property. Changing this property’s value raises the VisibilityChanged event. This event is fired either when end-users close or show dock panels or when they enable or disable their auto hide functionality.
This event handler receives a parameter of the VisibilityChangedEventArgs type. It allows the previous and current visible states of the panel to be determined.
See Also