BootstrapAccordion.ExpandedChanging Event

Fires on the server side before the expansion state of a group is changed.

Namespace: DevExpress.Web.Bootstrap

Assembly: DevExpress.Web.Bootstrap.v24.1.dll

NuGet Package: DevExpress.Web.Bootstrap

Declaration

C#

public event BootstrapAccordionGroupCancelEventHandler ExpandedChanging

VB.NET

Public Event ExpandedChanging As BootstrapAccordionGroupCancelEventHandler

Event Data

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

Property	Description
Cancel	Gets or sets a value indicating whether the command which raised an event should be canceled. Inherited from NavBarGroupCancelEventArgs.
Group	Gets a group for which the event is fired.

Remarks

Write an ExpandedChanging event handler to perform specific actions on the server side before each time a group’s expansion state is changed. You can use the event parameter’s properties to identify the group being manipulated and cancel execution of the command if necessary.