SpreadsheetControl.GroupStateChanged Event

Fires after row or column groups are expanded or collapsed.

Namespace: DevExpress.Xpf.Spreadsheet

Assembly: DevExpress.Xpf.Spreadsheet.v24.2.dll

NuGet Package: DevExpress.Wpf.Spreadsheet

Declaration

C#

public event GroupStateChangedEventHandler GroupStateChanged

VB.NET

Public Event GroupStateChanged As GroupStateChangedEventHandler

Event Data

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

Property	Description
Groups	Returns information about groups affected by the expand/collapse operation.
IsExpanded	Indicates whether groups are expanded.
IsRowGroup	Indicates whether a user expanded/collapsed row groups.

Remarks

The WPF Spreadsheet control ships with a set of events that allow you to control the expand/collapse operations for row and column groups in a worksheet.

The following events occur when a user clicks a plus / minus symbol on the outline bar (or the Hide Detail/Show Detail button on the Data ribbon tab):

• BeforeGroupProcessing
• GroupStateChanging
• GroupStateChanged
• AfterGroupProcessing

The following events occur when a user clicks one of the outline buttons to expand/collapse row or column groups:

• BeforeGroupProcessing
• BeforeOutlineButtonClick
• AfterOutlineButtonClick
• AfterGroupProcessing

The GroupStateChanged event fires after the expand/collapse operation is completed. Event arguments allow you to determine the group state (expanded or collapsed), check the group type (row or column), and retrieve information about affected groups (Groups).