How to select group in Listview?

Question

I am using collectionviewsource to show nested groups. I have two groups in listview. Want to show different RMB on different hierarchy.

Juan Francisco Morales Larios · Answer

You make two taks: 1.- Aggregate the GroupDescriptions: var view = CollectionViewSource.GetDefaultView(estadoEventos); view.GroupDescriptions.Add( new PropertyGroupDescription( NamePropertyToGroup )); 2.- Modify the GroupStyle of ListBox: ListView ... > ListView.GroupStyle > GroupStyle > GroupStyle.ContainerStyle > Style TargetType = {x:Type GroupItem} > Setter Property = Margin Value = 0005 /> Setter Property = Template > Setter.Value > ControlTemplate TargetType = {x:Type GroupItem} > Expander IsExpanded = False BorderBrush = #FFA4B97F BorderThickness = 2222 > Expander.Header > DockPanel > TextBlock HorizontalAlignment = Center VerticalAlignment = Center FontWeight = Bold Text = {Binding Name StringFormat=dd/MM/yyyy} Margin = 5000 Width = 100 /> TextBlock HorizontalAlignment = Center VerticalAlignment = Center FontWeight = Bold Text = {Binding ItemCount} /> DockPanel > Expander.Header > ItemsPresenter /> Expander > ControlTemplate > Setter.Value > Setter > Style > GroupStyle.ContainerStyle > GroupStyle > ListView.GroupStyle > ListView > It appeared very much code but it is simple.