Change culture info blazor web assembly, display name issue

Question

I'm using localization in my blazor wasm application. But when loading and trying to display the name of the cultures, it does not show as intended. By following this link https://learn.microsoft.com/en-us/aspnet/core/blazor/globalization-localization?view=aspnetcore-6.0&pivots=server#localization and many other tutorials, the displayName property should display German or French for the culture (de-De) and (fr-Fr).

But instead when I retrieve the differents cultures like this : `

Cultures = CultureInfo.GetCultures(CultureTypes.NeutralCultures).ToList();

And then displays it like this :

@foreach(var c in Cultures){
  <h1>@c.DisplayName</h1>
}

I get fr (Fr) or de (De) instead of the French/German I was expecting. Any ideas why it is not working?

PS: using .net 6.0 and VS 17.0.4

It might be because of this: [Blazor localization not working #16687](https://github.com/dotnet/aspnetcore/issues/16687) ? — Luuk, Jan 17 '22 at 08:02
And, which .NET version do you use? (it is not mentioned in your question, use [edit] to add that info) — Luuk, Jan 17 '22 at 08:07
https://stackoverflow.com/questions/59310206/better-way-to-get-browser-culture-in-blazor-webassembly-client-app same issue, closing this one — lioleveau, Jan 17 '22 at 10:23

Marcel Wolterbeek · Answer 1 · 2022-01-19T15:00:49.557

1

Unfortunately CultureInfo.DisplayName/EnglishName/NativeName are not supported in Blazor WASM.

The easiest way to get them is an Api-call to your server to load a dictionary with { CultureInfo.Name, CultureInfo.DisplayName }

edited Jan 19 '22 at 15:00

answered Jan 18 '22 at 20:50

Marcel Wolterbeek

Is this working for you? Because this was already set in my project and this does not work :/ – lioleveau Jan 19 '22 at 07:26
Unfortunately you are right @lioleveau. I use the `BlazorWebAssemblyLoadAllGlobalizationData` to solve [DateTime.TryParse with IFormatProvider does not work correct in Blazor WASM](https://github.com/dotnet/runtime/issues/46327) and I expected it to load the language names too, but is doesn't. I will correct my answer. – Marcel Wolterbeek Jan 19 '22 at 14:50
The issue with what you're suggesting is that the displayName is always in the current OS language, it won't change unfortunately – lioleveau Jan 21 '22 at 07:52

1 Answers1