Why does not work ASP.NET Core Localization

Question

I created an empty project.

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddLocalization(s => s.ResourcesPath = "Resources");
    var supportedCultures = new CultureInfo[]
    {
        new CultureInfo("de-CH"),
        new CultureInfo("en-GB"),
    };

    services.Configure<RequestLocalizationOptions>(s =>
    {
        s.SupportedCultures = supportedCultures;
        s.SupportedUICultures = supportedCultures;
        s.DefaultRequestCulture = new RequestCulture(culture: "de-CH", uiCulture: "de-CH");
    });

    services.AddMvc()
        .AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix)
        .AddDataAnnotationsLocalization();
}


public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
{

    app.UseStaticFiles();

    // Using localization 
    var locOptions = app.ApplicationServices.GetService<IOptions<RequestLocalizationOptions>>();
    app.UseRequestLocalization(locOptions.Value);

    app.UseMvc();
}

Folder Structure

Resources
|
|--Controllers 
|       HomeController.de.resx
|       HomeController.en.resx
|       HomeController.resx

Controller

public class HomeController : Controller
{
    private readonly IStringLocalizer<HomeController> _stringLocalizer;

    public HomeController(IStringLocalizer<HomeController> stringLocalizer)
    {
        _stringLocalizer = stringLocalizer;
    }

    public IActionResult Index()
    {
        string testValue = _stringLocalizer["Test"];
        return View();
    }
}

I'm new about asp.net core, I'm just trying to understand, Why testValue always return Test, it's a bit confusing. I'm doing something wrong? i will be happy if u help me.

Answer 1

Just add the package Microsoft.Extensions.Localization
After do that, it works.
The ResourcePath is optional, and if you leave it null, the resource files organization style is the same that classic Asp.Net application (in the same location of the target classes).