StringListBinding

StringListBinding.cs

using System.Linq;
using UnityEngine;
using UnityEngine.Localization;
using UnityEngine.Localization.Settings;
using UnityEngine.UIElements;

[UxmlObject]
public partial class StringListBinding : LocalizedString
{
    protected override BindingResult Update(in BindingContext context)
    {
        if (IsEmpty)
            return new BindingResult(BindingStatus.Success);

        #if UNITY_EDITOR
        // When not in playmode and not previewing a language we want to show something, so we revert to the project locale.
        if (!Application.isPlaying && LocaleOverride == null && LocalizationSettings.SelectedLocale == null)
        {
            LocaleOverride = LocalizationSettings.ProjectLocale;
        }
        #endif

        if (!CurrentLoadingOperationHandle.IsDone)
            return new BindingResult(BindingStatus.Pending);

        // Convert to a list
        var list = GetLocalizedString().Split(',').ToList();
        var element = context.targetElement;
        if (ConverterGroups.TrySetValueGlobal(ref element, context.bindingId, list, out var errorCode))
            return new BindingResult(BindingStatus.Success);
        return new BindingResult(BindingStatus.Failure);
    }
}

Related thread https://discussions.unity.com/t/ui-builder-localization-for-dropdown-radio-buttons/1559578/2