//get cultureInfo and then get short language name (ex. ua, ru) from it.
//after that set the value to ViewBag.Language in SetCurrentLanguage method
protected override IAsyncResult BeginExecuteCore(AsyncCallback callback, object state)
{
string userLanguage;
HttpCookie langCookie = Request.Cookies["culture"];
if (langCookie != null)
{
userLanguage = langCookie.Value;
}
else
{
var userLang = Request.UserLanguages != null ? Request.UserLanguages[0] : string.Empty;
userLanguage = string.IsNullOrEmpty(userLang) ? LanguagesManager.GetDefaultLanguage() : userLang;
}
SetCurrentLanguage(userLanguage);
return(base.BeginExecuteCore(callback, state));
}