private void GroupClick(object sender, RoutedEventArgs e) { this.ListView.GroupDescriptors.Clear(); var descriptor = new DelegateGroupDescriptor() { KeyLookup = new ListViewGroupKey(), SortOrder = SortOrder.Descending }; this.ListView.GroupDescriptors.Add(descriptor); }
// >> listview-grouping-delegategroupdescriptor-settingdelegate public DelegateGroupDescriptorGroups() { InitializeComponent(); listView.BindingContext = new ViewModel(); var delegateDescriptor = new DelegateGroupDescriptor { KeyExtractor = FirstLetterKeyExtractor }; listView.GroupDescriptors.Add(delegateDescriptor); }