Converting country codes in .NET

Question

In .NET is there any way to convert from three letter country codes (defined in ISO 3166-1 alpha-3) to two letter language codes (defined in ISO 3166-1 alpha-2) eg. convert

Answer 1

To the fellow lurker: if what you want is just to derive "default" country for a given two letter language name in .NET world (for example "en" => "US", "ja" => "JP"), this does the trick

// Can be read from CultureInfo.Name (or CultureInfo.Parent.Name if using non-generic culture)    
var language = "ja"; // Japanese

// Creates "ja-JP" culture 
var defaultCulture = CultureInfo.CreateSpecificCulture(language);

// After this, just take the split[1] (careful, check index) to get country code
var split = defaultCulture.Name.Split('-');

I've this working with a JS library that accepts only ISO3166 codes, and for 25 languages our website supports this works flawlessly. Always test your scenario