Why list view bind item is called for indexers exceeding list size passed in item source?

Unity Engine
,
1

Just want to understand why it is called for items outside the provided list count

var hierarchyList = currentSelectedTable.GetDropsInHierarchyWay(settings);
var dropsListView = rootVisualElement.Q<ListView>("table-information--drops");

dropsListView.makeItem = () => item.Instantiate();
dropsListView.itemsSource = hierarchyList;
dropsListView.bindItem = (item, i) =>
{
    if (i >= hierarchyList.Count)
    {
        Debug.Log($"i {i} - Count {hierarchyList.Count}"); // This enter a bunch of times
        return;
    }
...
2

Hi Nefisto!

I just came here looking for the same answer, but it looks like I found it just minutes after. I think your ListView may have the property ‘showBoundCollectionSize’ set to true. This apparently means that it uses the size of the collection as the first item, thus making the collection 1 bigger. In any case, setting it to false solved it for me. Hopefully this helps you.

3

Hey Marcel!

Thanks for getting the time to post it, this bound size property has indeed been set to true but unfortunately changing it didn’t solve the problem, I still receiving an out-of-range exception.

Anyway, thanks again for the info