I'm using a DataView and some items in the list are Folders (via InsertFolder). The children are added to these folder rows with AddChild. No problems there. What I am experiencing is that in CompareRows, on a handful of columns, I have custom sorting and return True. The expanded Children get sorted as if they are part of the main list, so makes things look bad. Ie, sorting by one of the custom sort columns, and expand a parent folder row, the child row then gets sorted to somewhere else in the list. Is there any way to make sure the Children of the Parent Rows only get sorted within their own depth? (I believe Children are depth+1 to their Parent).