Localization Issue in Elsa Studio After Upgrading to Version 3.4.0

[onerkaya]

After upgrading to Elsa 3.4.0, the localization selection in Elsa Studio is not functioning correctly.

We have configured the localization as follows:

"Localization": {
"DefaultCulture": "en-US",
"SupportedCultures": [ "tr-TR", "fr-FR" ]
}

In our service configuration, we are following the instructions provided in the README.md under Elsa.Studio.Localization:

services.AddCore()
.Replace(new ServiceDescriptor(typeof(IBrandingProvider), typeof(StudioLogoBrandingProvider), ServiceLifetime.Scoped));

services.AddTranslations();
services.AddLocalizationModule(localizationConfig);
services.AddSingleton<ILocalizationProvider, LepLocalizationProvider>();
services.AddSingleton<ILocalizer, LepDefaultLocalizer>();

Although the system navigates correctly to the relevant views, changing the language from the UI does not reflect the selected language in the interface. The UI continues to display the default language instead.

[KnibbsyMan]

Hi @onerkaya,

After having a quick look, I think you may need to include this in your program.cs.

var localizationConfig = new LocalizationConfig
{
    ConfigureLocalizationOptions = options =>
    {
        configuration.GetSection(LocalizationOptions.LocalizationSection).Bind(options);
        options.SupportedCultures = new[] { options?.DefaultCulture ?? new LocalizationOptions().DefaultCulture }
            .Concat(options?.SupportedCultures.Where(culture => culture != options?.DefaultCulture) ?? []) .ToArray();
    }
};
builder.Services.AddLocalizationModule(localizationConfig);

See example here: https://github.com/elsa-workflows/elsa-studio/blob/main/src/hosts/Elsa.Studio.Host.Server/Program.cs

It was an enhancement made to resolve the an error, of which I can’t remember exactly. I’ll try dig out the PR.

Let me know if this fixes your issue and if so I’ll update the README you mentioned.

[onerkaya]

Thanks for your help. LocalizationConfig is needed. I also noticed that my own middleware definitions were blocking it. Definition priority is important.

[KnibbsyMan]

Not a problem! Glad that resolved your issue. I’ll update the README to help others in future.

[KnibbsyMan]

I have made the changes to the README and will therefore close this discussion. Feel free to re-open it if you still have issues or open another discussion for further help.