ASP. NET CORE 3.1 - How to add Haitian Creole on my culture list?

Question

  services.Configure<RequestLocalizationOptions>(options =>  
            {  
                 
                var cultures = new List<CultureInfo>  
                {  
                    new CultureInfo("pt-BR"),  
                    new CultureInfo("en-US"),  
                    new CultureInfo("es"),  
                    new CultureInfo("ht"),  // <--   Haitian Creole                
                    new CultureInfo("tr"),  
                    new CultureInfo("ar")  
                };  
                options.DefaultRequestCulture = new Microsoft.AspNetCore.Localization.RequestCulture("pt-BR");  
                options.SupportedCultures = cultures;  
                options.SupportedUICultures = cultures;  
            });  

Is there any way to add Haitian Creole to my list of cultures? Since it is not in the list of supported languages? I've looked in several places, read and reread the localization docs. And I didn't find anything. Can someone help me? Because I know that in NET Framework, it is possible through CultureAndRegionInfoBuilder. But in .Net Core 3.1 I haven't seen anything similar.

Answer 1

Hi @Ronaldo Ademar ,

Is there any way to add Haitian Creole to my list of cultures? Since it is not in the list of supported languages?

Do you mean display the Haitian Creole in the cultures select DropDownList?

From the official document and its sample code, we can see that it, in the Views/Shared/_SelectLanguagePartial.cshtml file, we could get the supported cultures via the IOptions<RequestLocalizationOptions>, then use a select element to display the culture.

Then, to change the Unknown Language (ht) to Haitian Creole, you can modify the query statement as below:

Besides, if you want to add custom language and culture, you could use a custom provider, and add it via the AddInitialRequestCultureProvider method, refer to the following code:

private const string enUSCulture = "en-US";  
  
services.Configure<RequestLocalizationOptions>(options =>  
{  
    var supportedCultures = new[]  
    {  
        new CultureInfo(enUSCulture),  
        new CultureInfo("fr")  
    };  
  
    options.DefaultRequestCulture = new RequestCulture(culture: enUSCulture, uiCulture: enUSCulture);  
    options.SupportedCultures = supportedCultures;  
    options.SupportedUICultures = supportedCultures;  
  
    options.AddInitialRequestCultureProvider(new CustomRequestCultureProvider(async context =>  
    {  
        // My custom request culture logic  
        return await Task.FromResult(new ProviderCultureResult("en"));  
    }));  
});  

More detail information, see Use a custom provider and Writing a Custom Request Culture Provider.

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Best regards,
Dillion

Answer 2

Hi, I appreciate your very thorough answer. But maybe I didn't make myself so clear. The implementation of language choice I know how to do. My problem is implementing a language that is not supported. And it is a requirement of my client. That list here https://learn.microsoft.com/en-us/bingmaps/rest-services/common-parameters-and-types/supported-culture-codes. Haitian Creole is not an existing culture on the list. And I've searched, searched, tested different ways to add it as a culture option and found nothing.