Catrobat.IDE.WindowsPhone.Controls.ListsViewControls.CatrobatListView.CatrobatListView.UpdateSelectedItems C# (CSharp) Method

        private void UpdateSelectedItems()
        {
            if (SelectedItems as IList != null)
            {
                (SelectedItems as IList).Clear();
            }
            SelectedItems.CollectionChanged -= SelectedItems_CollectionChanged;
            this.Clvw.SmartSelectedItems.CollectionChanged -= SmartSelectedItems_CollectionChanged;
            Clvw.UpdateSelectedItems(this.SelectedItems as IList);
            this.Clvw.SmartSelectedItems.CollectionChanged += SmartSelectedItems_CollectionChanged;
            SelectedItems.CollectionChanged += SelectedItems_CollectionChanged;
        }