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DataGridView.GroupExpanding Event

Occurs before a group of rows is expanded.

Namespace: DevExpress.Maui.DataGrid

Assembly: DevExpress.Maui.DataGrid.dll

NuGet Package: DevExpress.Maui.DataGrid

#Declaration

C#
public event EventHandler<CancelRowEventArgs> GroupExpanding

#Event Data

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

Property Description
Cancel Gets or sets a value indicating whether the event should be canceled. Inherited from CancelEventArgs.
RowHandle Returns the handle of the processed row.

#Remarks

The GroupExpanding event is raised before a group of data rows is expanded from UI or code (ExpandGroupRow. You can handle this event and set its parameter’s Cancel property to true to prevent a group from being expanded.

When you call the ExpandAllGroups method, the GroupExpanding event is raised for each group.

After the group row has been expanded, the GroupExpanded event is raised.

See Also