private static void ListCollectionChanged()

in Samples-NetCore/MusicManager/MusicManager.Presentation/Controls/SelectionBehavior.cs [76:115]

39 lines of code
8 McCabe index (conditional complexity)


        private static void ListCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            if (syncListsThatAreUpdating.Contains(sender)) { return; }

            var multiSelector = multiSelectorWithObservableList.First(x => x.Item2 == sender).Item1;
            selectorsThatAreUpdating.Add(multiSelector.Selector);
            try
            {
                if (e.Action == NotifyCollectionChangedAction.Add)
                {
                    foreach (var items in e.NewItems)
                    {
                        multiSelector.SelectedItems.Add(items);
                    }
                }
                else if (e.Action == NotifyCollectionChangedAction.Remove)
                {
                    foreach (var items in e.OldItems)
                    {
                        multiSelector.SelectedItems.Remove(items);
                    }
                }
                else if (e.Action == NotifyCollectionChangedAction.Reset)
                {
                    multiSelector.SelectedItems.Clear();
                    foreach (var item in (IEnumerable)sender)
                    {
                        multiSelector.SelectedItems.Add(item);
                    }
                }
                else
                {
                    throw new NotSupportedException();
                }
            }
            finally
            {
                selectorsThatAreUpdating.Remove(multiSelector.Selector);
            }
        }