ExplorerBarView.GroupExpandedChanging Event

Fires before the expanded state of a group is changed.

Namespace: DevExpress.Xpf.NavBar

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

Declaration

C#

public event NavBarGroupExpandedChangingEventHandler GroupExpandedChanging

VB.NET

Public Event GroupExpandedChanging As NavBarGroupExpandedChangingEventHandler

Event Data

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

Property	Description
Cancel	Gets or sets a value indicating whether the operation which raised an event should be canceled.
Group	Gets a group object related to the event. Inherited from NavBarGroupExpandedChangedEventArgs.
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.
IsExpanded	Gets a value indicating whether the processed group is expanded. Inherited from NavBarGroupExpandedChangedEventArgs.
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

The GroupExpandedChanging event occurs when a group's expanded state is going to be changed within the NavBarControl. This event allows you to cancel the group expanded state change, if required.