DockLayoutManager.MDIItemActivating Event

Fires before an MDI child panel is activated.

Namespace: DevExpress.Xpf.Docking

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

Declaration

C#

public event MDIItemCancelEventHandler MDIItemActivating

VB.NET

Public Event MDIItemActivating As MDIItemCancelEventHandler

Event Data

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

Property	Description
Cancel	Gets or sets whether the current operation must be canceled.
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.
Item	Gets the currently processed item. Inherited from ItemEventArgs.
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

You can handle this event to prevent an MDI child panel from being activated. To accomplish this task, set the event's Cancel parameter to true.