Filter: Only show subitem if the item is the main parent
I would like to make this filter: Only show subitem if the item is the main parent of that given subitem.
First usage scenario: I have a first grid (Books) in which the itens are books and the subitems are notes about those books; and a second grid (Thesis) in which the items are chapters of my thesis, and subitems are my paragraphs. Then I make some of the subitems from Books grid children of some of the items of the Thesis grid, as second parents. That's the structure, but, sometimes, I want to look at the Thesis grid and view only the chapters and paragraphs, without the book notes.