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DockPanel.Expanding Event

Occurs when the current auto-hide DockPanel is about to be displayed.

Namespace: DevExpress.XtraBars.Docking

Assembly: DevExpress.XtraBars.v24.2.dll

NuGet Package: DevExpress.Win.Navigation

#Declaration

public event DockPanelCancelEventHandler Expanding

#Event Data

The Expanding event's data class is DockPanelCancelEventArgs. The following properties provide information specific to this event:

Property Description
Cancel Gets or sets whether the operation performed on the processed panel should be cancelled.
Panel Gets the processed dock panel. Inherited from DockPanelEventArgs.

#Remarks

Use the BaseDockOptions.ShowAutoHideButton property to specify whether an end-user can enable/disable auto-hiding a panel at runtime. When an auto-hide DockPanel is about to be displayed, the Expanding event occurs. Afterwards, when the panel is shown, the DockPanel.Expanded event is raised. The DockPanel.Collapsing and DockPanel.Collapsed events are opposite events , fired when a panel is auto-hidden.

The DockManager.Expanding event is the global version of the Expanding event and occurs when any auto-hide DockPanel panel within the DockManager is about to be displayed.

See Also