@using Microsoft.AspNetCore.Builder
    @using Microsoft.AspNetCore.Http.Features
    @using Microsoft.AspNetCore.Localization
    @using Microsoft.AspNetCore.Mvc.Localization
    @using Microsoft.Extensions.Options
    @inject IViewLocalizer Localizer
    @inject IOptions<RequestLocalizationOptions> LocOptions
    @{
            int i = 100;
        }
    
        <p>@i.ToString("c")</p>
    @{
        var requestCulture = Context.Features.Get<IRequestCultureFeature>();
        var cultureItems = LocOptions.Value.SupportedUICultures
            .Select(c => new SelectListItem { Value = c.Name, Text = c.EnglishName })
            .ToList();
        var returnUrl = string.IsNullOrEmpty(Context.Request.Path) ? "~/" : $"~{Context.Request.Path.Value}";
    }
    
    <div title="@Localizer["Request culture provider:"] @requestCulture?.Provider?.GetType().Name">
        <form id="selectLanguage" asp-controller="Currency"
              asp-action="SetLanguage" asp-route-returnUrl="@returnUrl"
              method="post" class="form-horizontal" role="form">
            <label asp-for="@requestCulture.RequestCulture.UICulture.Name">@Localizer["Language:"]</label>
            <select name="culture"
                    onchange="this.form.submit();"
                    asp-for="@requestCulture.RequestCulture.UICulture.Name" asp-items="cultureItems">
            </select>
        </form>
    </div>