Umbraco nuPickers DataSource for a language picker

LanguagePickerDataSource.cs

using nuPickers.Shared.DotNetDataSource;
using System.Collections.Generic;
using System.Linq;
using Umbraco.Web;

namespace Opten.NAMESPACE.Web.DataSources
{
	public class LanguagePickerDataSource : IDotNetDataSource
	{
		IEnumerable<KeyValuePair<string, string>> IDotNetDataSource.GetEditorDataItems(int contextId)
		{
			var list = Enumerable.Empty<KeyValuePair<string, string>>().ToList();
			var localizationService = UmbracoContext.Current.Application.Services.LocalizationService;
			var languages = localizationService.GetAllLanguages();

			foreach (var language in languages)
			{
				list.Add(new KeyValuePair<string, string>(language.Id.ToString(), language.CultureInfo.DisplayName));
			}

			return list;
		}
	}
}