.NET Core localization globalization

Question

Can someone confirm for me whether this code changes the culture for all users of the application, or just for the current user?

var cultureInfo = new CultureInfo("en-US");
CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;

I want to show a combo with the different cultures accepted for the application and change the culture when I select it in the combo, but if I open the application in, for example Chrome and Firefox when I change in one, it seems that the culture changes in the other, and this is scary.

Answer 1

you can use bellow code

Startup.ConfigureServices

CultureInfo[] supportedCultures = new[]
       {
        new CultureInfo("ar"),
        new CultureInfo("fa"),
        new CultureInfo("en")
    };

    services.Configure<RequestLocalizationOptions>(options =>
    {
        options.DefaultRequestCulture = new RequestCulture("ar");
        options.SupportedCultures = supportedCultures;
        options.SupportedUICultures = supportedCultures;
        options.RequestCultureProviders = new List<IRequestCultureProvider>
            {
                new QueryStringRequestCultureProvider(),
                new CookieRequestCultureProvider()
            };

    });

Startup.Configure

app.UseRequestLocalization();

change language:

[HttpPost]
public IActionResult SetLanguage(string culture, string returnUrl)
{
    Response.Cookies.Append(
        CookieRequestCultureProvider.DefaultCookieName,
        CookieRequestCultureProvider.MakeCookieValue(new     RequestCulture(culture)),
    new CookieOptions { Expires = DateTimeOffset.UtcNow.AddYears(1) }
    );

    return LocalRedirect(returnUrl);
}

More Details: here