Occurs after grid's selection has been changed.
public event GridSelectionChangedEventHandler SelectionChanged
Public Event SelectionChanged As GridSelectionChangedEventHandler
The SelectionChanged event handler receives an argument of the DevExpress.UI.Xaml.Grid.GridSelectionChangedEventArgs type.
Each time the grid's selection is changed, the SelectionChanged event is raised. The event parameter's 'Action' property indicates how the grid's selection has been changed.