Razor Html.DisplayFor() does not pick the right localized resource

Question

Razor does not return the localized resource according to the current thread culture and I have no idea why. It always return the string within the neutral resx file.

PurchaseOrderModel.cs:

public class PurchaseOrderModel : ProfileSpecificEntityModel {
    [Display(ResourceType = typeof(PurchaseOrderModelRes), Name = "ExpectedDeliveryOn")]
    public DateTimeOffset? ExpectedDeliveryOn { get; set; }
}

In the same folder, I have:

PurchaseOrderModelRes.resx -> Neutral resource. Access modifier set to "public". PurchaseOrderModelRes.fr.resx -> Localized French resource.

PurchaseOrderReport.cs:

<div>@Html.DisplayNameFor(purchaseOrder => purchaseOrder.ExpectedDeliveryOn)</div>

PurchaseOrderController.cs:

[HttpGet]
public async Task<IActionResult> PurchaseOrdersReportAsync([FromQuery] PurchaseOrderListQueryOptionsModel queryOptions) {
    CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("fr"); //Should use *.fr.resx files.
    CultureInfo.CurrentUICulture = CultureInfo.GetCultureInfo("fr");
    PaginatedList<PurchaseOrder> purchaseOrders = await _purchaseOrderService.GetPurchaseOrdersAsync(CurrentUser, queryOptions.ToQueryOptions());
    PaginatedListModel<PurchaseOrderModel> purchaseOrderModels = _paginatedListModelConverter.Convert(purchaseOrders, p => _purchaseOrderModelConverter.Convert(p));
    return View("PurchaseOrderReport", purchaseOrderModels.Items);
}

Startup.cs:

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

It may be a problem with `async`, and depending on your .Net version, this question may help https://stackoverflow.com/questions/30662668/keep-currentculture-in-async-await — devio, May 03 '18 at 06:17
Indeed it was. To keep the method async I had to set the culture info in a resource filter. Thanks — olivierr91, May 04 '18 at 15:34

score 0 · Accepted Answer · answered May 04 '18 at 15:35

Solved the issue by setting the culture in a ResourceFilter instead of the controller action, as proposed by this thread: ASP.NET MVC (Async) CurrentCulture is not shared between Controller and View

Now the culture is shared between the controller and the view correctly.

Razor Html.DisplayFor() does not pick the right localized resource

1 Answers1