Binding the text of a label

Hey!

I figured out how to do data binding to PropertyFields however it does not appear to be possible when you just want to display some dynamic text. Is this currently possible/planned?

 

Using `isReadOnly=true` doesn't seem to be working in 2019.1.4f1?

Is there a way to set this from UXML as `readonly="true"` like the docs state doesn't seem to work.

Currently working around it with some USS and other properties (focusable, pickingmode etc.) but feels hacky.

Edit: Correction, doesn't accept keyboard input, but does allow selection and deletion...

 

Yeah, the properties isReadOnly and readonly are there and have some of the associated behaviours but it doesn't fully work.

- doesn't accept keyboard input, but does allow selection and deletion of content (defeating the purpose of it)
- doesn't "fade out" in the expected style of IMGUI readonly stuff

Submitted a bug[1158450], once ripped it out into smaller repro project, not a major issue as can workaround, but weird behaviour means had to turn it off for now.

 

Old thread bump, but I grabbed 2019.3 to peek at this. Is there an example of binding somelabel.text to a property? This seems super useful but I'm not clear on the whole binding magic altogether.

 

Works great! Code for reference.

Code (CSharp):

1.         private static void ListBindItem(VisualElement element, int navIndex)
2.         {
3.             // find the serialized property
4.             int vaultId = m_indexMap[navIndex];
5.             Editor ed = Editor.CreateEditor(Vault.Db.Items[vaultId]);
6.             SerializedObject so = ed.serializedObject;
7.             SerializedProperty prop = so.FindProperty("Title");
8.  
9.             // build a prefix for the number
10.             ((Label) element.ElementAt(0)).text = navIndex.ToString("0000") + "\t|";
11.  
12.             // bind the label to the serialized target target property title
13.             ((Label) element.ElementAt(1)).BindProperty(prop);
14.         }

GIF for results

 

Is there guidance anywhere on creating your own custom Bindable Visual Elements?

 

Ah thanks. I did get it to work but it would still be nice to have some example code for this sort of thing as I kinda just had to guess at proper implementations until things worked and I'm not sure I did things correctly

 

Much of what I have learned about UIElements is from examining the reference that Unity graciously put out for us to look at here! This way you can see how they implemented all of their fields to inform how you would go about creating your own.

 

Actually now the Label is bindeable indeed
See the attached image.
And the code-behind is:

Code (CSharp):

1. using UnityEditor;
2. using UnityEditor.UIElements;
3. using UnityEngine;
4. using UnityEngine.UIElements;
5.  
6. public class ScoreCounter : MonoBehaviour {
7.     [SerializeField]
8.     private int _currentScore;
9.     // Start is called before the first frame update
10.     void Start () {
11.         _currentScore = 0;
12.         InvokeRepeating ("IncrementScore", 0.5f, 1);
13.     }
14.  
15.     void Awake () {
16.         var uiDocument = GetComponent<UIDocument> ();
17.         SerializedObject so = new SerializedObject (this);
18.         uiDocument.rootVisualElement.Bind (so);
19.     }
20.  
21.     void IncrementScore () {
22.         _currentScore += 10;
23.     }
24. }

 

Hi, I tried bind label with GameObject name, it works.
But I found that if I bind label text with Asset name, It doesn't work.

Here is my code:

Code (CSharp):

1. var m_AssetView = new ScrollView();
2.             var assets = AssetDatabase.FindAssets("t:Material", new[]
3.             {
4.                 "Assets/Materials"
5.             });
6.             var assetList = assets.Select(x => AssetDatabase.LoadAssetAtPath<Material>(AssetDatabase.GUIDToAssetPath(x))).ToList();
7.             foreach (var asset in assetList)
8.             {
9.                 SerializedObject matSo = new SerializedObject(asset);
10.                
11.                 var label = new Label();
12.                 label.bindingPath = "m_Name";
13.                 label.Bind(matSo);
14.                 var ve = new VisualElement();
15.                 ve.Add(label);
16.                 ve.TrackSerializedObjectValue(matSo, o => {Debug.Log(o.targetObject.name);});
17.                 m_AssetView.Add(ve);
18.             }