Beginner in UI ToolKit - Sample ListView

Unity Engine
1

Hi,

I would to make a listView, but I can’t add Label like in the example.
I mean, the numbers doesn’t show in the window and in the debugger only Hello world.

using UnityEditor;
using UnityEngine;
using UnityEngine.UIElements;
using System.Collections.Generic;
using System;


public class hip : EditorWindow
{
    [MenuItem("testo/hip")]
    public static void ShowExample()
    {
        hip wnd = GetWindow<hip>();
        wnd.titleContent = new GUIContent("hip");
    }

    public void CreateGUI()
    {
        var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/hip.uxml");
        VisualElement labelFromUXML = visualTree.Instantiate();
        rootVisualElement.Add(labelFromUXML);

        createListView();
    }

    void createListView()
    {

        // Create some list of data, here simply numbers in interval [1, 1000]
        const int itemCount = 1000;
        var items = new List<string>(itemCount);
        for (int i = 1; i <= itemCount; i++)
            items.Add(i.ToString());

        Func<VisualElement> makeItem = () => new Label();
        Action<VisualElement, int> bindItem = (e, i) => (e as Label).text = items[i];

        ListView listView = rootVisualElement.Q<ListView>(className: "the-uxml-listview");
        //var listView = rootVisualElement.Q<ListView>();
        listView.makeItem = makeItem;
        listView.bindItem = bindItem;
        listView.itemsSource = items;
        listView.selectionType = SelectionType.Multiple;
       
        // Callback invoked when the user double clicks an item
        listView.onItemsChosen += Debug.Log;

        // Callback invoked when the user changes the selection inside the ListView
        listView.onSelectionChange += Debug.Log;

    }
}

<?xml version="1.0" encoding="utf-8"?>
<engine:UXML
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:engine="UnityEngine.UIElements"
    xmlns:editor="UnityEditor.UIElements"
    xsi:noNamespaceSchemaLocation="../../UIElementsSchema/UIElements.xsd"
>
    <engine:Label text="Hello World! From UXML" />
    <engine:ListView class="the-uxml-listview" />
</engine:UXML>

Label {
    font-size: 20px;
    -unity-font-style: bold;
    color: rgb(68, 138, 255);
}
.the-uxml-listview {
    /* Provide the list view with an explict height for every row
    so it can calculate how many items to actually display */
    --unity-item-height: 16;
    height: 200px;
}
2

Sorry, Close the post, I move it.