//-----------------------------------------------------
#region Construction
public GroupData(object header)
{
this._header = header;
_internalItems = new FastObservableCollection <object>();
Items = new ReadOnlyObservableCollection <object>(_internalItems);
_level = 0;
this.IsBottomLevel = true;
}
//-----------------------------------------------------
#region Construction
public CollectionView(IList sourceCollection)
{
_sourceCollection = sourceCollection ?? throw new ArgumentNullException(nameof(sourceCollection));
_groups = new FastObservableCollection <IGroupData>();
Groups = new ReadOnlyObservableCollection <IGroupData>(_groups);
_groupDescriptions = new FastObservableCollection <GroupDescription>();
GroupDescriptions.CollectionChanged += _groupDescriptions_CollectionChanged;
_sortDescriptions = new FastObservableCollection <SortDescription>();
SortDescriptions.CollectionChanged += _sortDescriptions_CollectionChanged;
var newObservable = _sourceCollection as INotifyCollectionChanged;
if (newObservable != null)
{
_subscription = newObservable.WeakSubscribe(OnSourceCollection_CollectionChanged);
}
Init();
}
