GridControl.GroupRowCollapsed Event

Occurs after a group row has been collapsed.

Namespace: DevExpress.Xpf.Grid

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

Declaration

C#

public event RowEventHandler GroupRowCollapsed

VB.NET

Public Event GroupRowCollapsed As RowEventHandler

Event Data

The GroupRowCollapsed event's handler receives an argument of the RowEventArgs 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.
Row	Gets the processed row.
RowHandle	Gets the processed row's handle.
Source	Gets the View that raised the event.

Remarks

The GroupRowCollapsed event is raised after a group row has been collapsed by an end-user or in code. The group row is identified by its handle via the RowEventArgs.RowHandle property. This event serves as a notification and the action cannot be cancelled. To control whether individual group rows can be collapsed, handle the GridControl.GroupRowCollapsing event.

Group rows can be collapsed recursively using the GridViewBase.CollapseFocusedRow method overload with the recursive parameter set to true. In this instance, the GroupRowCollapsed event is raised only once (for the row passed as this method's parameter). This event isn't raised for nesting group rows.

The GridControl.CollapseAllGroups method allows you to collapse all group rows. In this instance, the GroupRowCollapsed event is raised only once. The event parameter's RowEventArgs.RowHandle property returns an invalid row handle (DataControlBase.InvalidRowHandle).

To learn more, see Expanding and Collapsing Group Rows.