at Microsoft.Toolkit.Uwp.UI.AdvancedCollectionView.System.Collections.Generic.IComparer<System.Object>.Compare(Object x, Object y)
at System.Collections.Generic.ArraySortHelper`1.InternalBinarySearch(T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)
at System.Collections.Generic.ArraySortHelper`1.BinarySearch(T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)

this.ItemsView.SortDescriptions.Add(new SortDescription("PurchaseDate", SortDirection.Ascending));