从.resx文件组获取所有可用区域性

在应用程序的目录中查找附属程序集:对于每个子目录,检查其名称是否与区域性名称对应,以及是否包含 .resources.dll 文件:

public IEnumerable<CultureInfo> GetAvailableCultures()
{
    var programLocation = Process.GetCurrentProcess().MainModule.FileName;
    var resourceFileName = Path.GetFileNameWithoutExtension(programLocation) + ".resources.dll";
    var rootDir = new DirectoryInfo(Path.GetDirectoryName(programLocation));
    return from c in CultureInfo.GetCultures(CultureTypes.AllCultures)
           join d in rootDir.EnumerateDirectories() on c.IetfLanguageTag equals d.Name
           where d.EnumerateFiles(resourceFileName).Any()
           select c;
}

有一种更优雅的方法 here

根据@hans holzbart的回答 Programmatic way to get all the available languages (in satellite assemblies) 但已修复为不返回不变区域性,并将其包装为可重用方法:

public static IEnumerable<CultureInfo> GetAvailableCultures()
{
  List<CultureInfo> result = new List<CultureInfo>();

  ResourceManager rm = new ResourceManager(typeof(Resources));

  CultureInfo[] cultures = CultureInfo.GetCultures(CultureTypes.AllCultures);
  foreach (CultureInfo culture in cultures)
  {
    try
    {
      if (culture.Equals(CultureInfo.InvariantCulture)) continue; //do not use "==", won't work

      ResourceSet rs = rm.GetResourceSet(culture, true, false);
      if (rs != null)
        result.Add(culture);
    }
    catch (CultureNotFoundException)
    {
      //NOP
    }
  }
  return result;
}

使用该方法,可以获得要添加到某些组合框中的字符串列表,方法如下:

public static ObservableCollection<string> GetAvailableLanguages()
{
  var languages = new ObservableCollection<string>();
  var cultures = GetAvailableCultures();
  foreach (CultureInfo culture in cultures)
    languages.Add(culture.NativeName + " (" + culture.EnglishName + " [" + culture.TwoLetterISOLanguageName + "])");
  return languages;
}