I checked out the Emsemble example for creating your own Cell Factory and it all worked until I took their example of lets say 20 numbers(which allowed for a scroll) and turned it into 3. For some reason when I would run it and run my mouse cursor over the first row in and focus in/out it would turn the cell invisible, then display it...


final ListView<Number> listView = new ListView<>();
        listView.setItems(FXCollections.<Number>observableArrayList(
                100.00, -12.34, 33.01
        ));
         
        listView.setCellFactory((ListView<java.lang.Number> list) -> new moneyViewer());
         
      // listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
        
        
     
Group root = new Group(listView);


 class moneyViewer extends ListCell<Number>
 {
        @Override
        public void updateItem(Number item, boolean empty)
        {
            super.updateItem(item, empty);
             
            // format the number as if it were a monetary value using the
            // formatting relevant to the current locale. This would format
            // 43.68 as "$43.68", and -23.67 as "($23.67)"
            setText(item == null ? "" : NumberFormat.getCurrencyInstance().format(item));
 
            if (item != null) {
                double value = item.doubleValue();
                
                setTextFill(value == 0 ? Color.BLACK :
                    value < 0 ? Color.RED : Color.GREEN);
            }
        }
    }