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Instantiate UXML from C# scripts

Learn how to instantiate UXML with C# by an example.
Read time 1 minuteLast updated 21 days ago

To build UI from a UXML file:
  1. Use either:
Once the UXML is instantiated, you can retrieve specific elements from the visual tree with UQuery.
The following example creates a custom Editor window and loads a UXML file as its content:
using UnityEditor;using UnityEngine;using UnityEngine.UIElements;using UnityEditor.UIElements;public class MyWindow : EditorWindow { [MenuItem ("Window/My Window")] public static void ShowWindow () { EditorWindow w = EditorWindow.GetWindow(typeof(MyWindow)); VisualTreeAsset uiAsset = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/MyWindow.uxml"); VisualElement ui = uiAsset.Instantiate(); w.rootVisualElement.Add(ui); }}
To load UXML assets for runtime, set up
VisualTreeAsset
references in your MonoBehaviour scripts
and assign the UXML assets from the Inspector. For more information and an example, refer to Support for runtime UI and Create a list view runtime UI.

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