MVVM通过ItemsSource获取CollectionView 并排序和筛选

    void SortRecipeFolder<T>(IEnumerable<T> source, string sortName, ListSortDirection direction)
    {
        var collectionView = CollectionViewSource.GetDefaultView(source);
        if (source is List<RemoteRecipeFolder> wafer)
        {
            collectionView.Filter = (x) =>
            {
                var casted = x as RemoteRecipeFolder;
                return casted != null && casted.WaferId.Contains(SearchText, StringComparison.OrdinalIgnoreCase);
            };
        }
        // 清除旧的排序
        collectionView.SortDescriptions.Clear();
        // 按 Age 升序排序
        collectionView.SortDescriptions.Add(new SortDescription(sortName, direction));
        // 如果需要，强制刷新
        collectionView.Refresh();
    }