DockLayoutManager.ShowingMenu Event

Fires before showing a context menu, and allows it to be customized.

Namespace: DevExpress.Xpf.Docking

Assembly: DevExpress.Xpf.Docking.v14.2.dll

Declaration

C#

public event ShowingMenuEventHandler ShowingMenu

VB.NET

Public Event ShowingMenu As ShowingMenuEventHandler

Event Data

The ShowingMenu event's handler receives an argument of the ShowingMenuEventArgs type. The following properties provide information specific to this event:

Property	Description
Handled	Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs.
OriginalSource	Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs.
RoutedEvent	Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs.
Source	Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs.

Remarks

This event allows you to respond to a context menu being invoked. You can handle it to change a menu, or prevent it from being displayed. To prevent the menu from being displayed, set the event's Show parameter to false.

To change the menu, add bar customization actions to the event's ActionList parameter. Bar customization actions are objects that implement the IBarManagerControllerAction interface. See DockLayoutManager.ContextMenuCustomizations for a list of mostly used customization actions.

To customize context menus in XAML, use the DockLayoutManager.ContextMenuCustomizations and DockLayoutManager.ItemSelectorMenuCustomizations properties.