public void OverallSortAllChilds(SortOrder sortOrder)
{
switch (sortOrder)
{
case SortOrder.None:
break;
case SortOrder.Ascending:
TreeViewItems = new ObservableCollection <TreeViewItemBase>(TreeViewItems.AsEnumerable().OrderBy(x => x.DisplayName));
//recursive call
TreeViewItems.ToList().ForEach(x => x.OverallSortAllChilds(sortOrder));
break;
case SortOrder.Descending:
TreeViewItems = new ObservableCollection <TreeViewItemBase>(TreeViewItems.AsEnumerable().OrderByDescending(x => x.DisplayName));
//recursive call
TreeViewItems.ToList().ForEach(x => x.OverallSortAllChilds(sortOrder));
break;
case SortOrder.Reverse:
TreeViewItems = new ObservableCollection <TreeViewItemBase>(TreeViewItems.AsEnumerable().Reverse());
//recursive call
TreeViewItems.ToList().ForEach(x => x.OverallSortAllChilds(sortOrder));
break;
default:
throw new NotImplementedException();
}
}
