List View - TryPageInItems

[HongDeveloper]

Hello, I'm using Nova UI well.
But there is one problem, so I leave a question.
There is no problem with Editor, but when building
use the SetDataSource method for List Grid View, you will get an error in the while statement of line 1004.
I think there's probably an error here. What should I do?

IUIBlockBase block = View.TryPageInItems(nextItem: append, size - addedSize);

[adgray1]

Hi!

Would you mind sharing the error message and full call stack?

Thanks!

[HongDeveloper]

I'm using Addressable, but when I changed the List Item Prefab to Addressable, it work
but it's a problem because I don't use Addressable inside the UI

[adgray1]

Would you mind sharing your code where you call SetDataSource and also your code where you handle the Data.OnBind events to populate the GridView?

[HongDeveloper]

`
private async UniTask Initialize()
{
InitializeUISetting();
await InitializePanel();
}

    private void InitializeUISetting()
    {
        AddDataBinder();
        SetSliceProvider();
        UpdateContainerData();
    }
    private void AddDataBinder() => ItemGridView.AddDataBinder<IItemHeader, ItemHeaderVisuals>(Bind);
    private void Bind<T>(Data.OnBind<T> evt, ItemHeaderVisuals target, int index) where T : IItemHeader => target.Bind(evt.UserData);
    private void SetSliceProvider() => ItemGridView.SetSliceProvider(ProvideSlice);

    private void ProvideSlice(int sliceIndex, GridView gridview, ref GridSlice2D gridSlice)
    {
        gridSlice.Layout.AutoSize.Y = AutoSize.Shrink;
        gridSlice.Layout.Margin.XY = Length2.FixedValue(0, 8);
    }

    protected void UpdateContainerData() => ItemGridView.SetDataSource(GetDataList());

    protected virtual async UniTask InitializePanel() => await UniTask.CompletedTask;
    protected abstract List<IItemHeader> GetDataList(); 

`

[HongDeveloper]

`public void Bind(IItemHeader itemHeader)
{
_itemHeader = itemHeader;

        BindVisualName();
        BindButtonClickEvent();
        BindThumbnail().Forget();
    }
    private void BindVisualName() => Name.Text = _itemHeader.GetName();
    private async UniTaskVoid BindThumbnail() => Thumbnail.SetImage(await _itemHeader.GetThumbnail());`

[adgray1]

Thank you for sharing the code!

While nothing is jumping out at us just yet, we're not super familiar with UniTask specfically, so we'd be curious to hear what happens if you modify the async/await steps in the code you shared to run synchronously (or removed them if they aren't required to do the basic data-binding). Perhaps something is being executed off-thread or in an unexpected order, and that's what's causing the problem.

A callstack of the crash could be really helpful as well, so we can see exactly which line is leading to this issue!