TreeView doesn't rendering, which step I'm not doing right?

[htw128]

Hello, community

I'm trying to use the TreeView to show some content, but nothing is rendering... I would like to know which step I did wrong.
I've looked into #302 and addressed that possible problem.

Here are my code snippets:
MainPage.xaml:

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:uranium="http://schemas.enisn-projects.io/dotnet/maui/uraniumui"
             xmlns:material="http://schemas.enisn-projects.io/dotnet/maui/uraniumui/material"
             x:Class="UraniumTreeViewTest.MainPage"
             xmlns:local="clr-namespace:UraniumTreeViewTest"
             x:DataType="local:TreeViewPageViewModel"
             >
    <VerticalStackLayout>
        <material:TreeView ItemsSource="{Binding Nodes}"/>
    </VerticalStackLayout>
</ContentPage>

TreeView.cs

using System;
using System.Collections.ObjectModel;
using UraniumUI;

namespace UraniumTreeViewTest
{
    public class TreeViewPageViewModel : BindableObject
    {

        public ObservableCollection<MyItem> Nodes { get; set; } = new();

        public TreeViewPageViewModel()
        {
            Nodes.Add(new MyItem("A")
            {
                Children =
            {
                new MyItem("A.1"),
                new MyItem("A.2"),
            }
            });
            Nodes.Add(new MyItem("B")
            {
                Children =
            {
                new MyItem("B.1")
                {
                    Children =
                    {
                        new MyItem("B.1.a"),
                        new MyItem("B.1.b"),
                        new MyItem("B.1.c"),
                        new MyItem("B.1.d"),

                    }
                },
                new MyItem("B.2"),
            }
            });
            Nodes.Add(new MyItem("C"));
            Nodes.Add(new MyItem("D"));
        }
    }

    public class MyItem
    {
        public MyItem()
        {
        }

        public MyItem(string name) // For easy initialization (optional)
        {
            Name = name;
        }

        public virtual string Name { get; set; }
        public virtual IList<MyItem> Children { get; set; } = new ObservableCollection<MyItem>();
    }

}

[enisn]

Do you get any error?

Or just application is running and you don't see anything on the page?

if the second scenario, you should check the MauiProgram.cs and make sure you called UseUraniumUI() and UseUraniumUIMaterial()

[htw128]

Thank you for your reply.

It's the second case. I've checked MauiProgram.cs, and there are .UseUraniumUI() and .UseUraniumUIMaterial().

I've added my testing project as an attachment for further debugging.
UraniumTreeViewTest.zip