Как локализовать сообщения об ошибках ASP.NET Core 2.1 Identity UserName и Password?

Question

Я хотел бы предоставить локализованные строки для сообщений об ошибках имени пользователя и пароля Identity на испанском языке для проекта asp.net core 2.1, поскольку он всегда показывает сообщения на английском языке. Я пытался, как указано в http://www.ziyad.info/en/articles/20-Localizing_Identity_Error_Messages, но у меня это не работает.

Спасибо

Answer 1

Я использовал аналогичный подход, как в приведенной ссылке

Вот ссылка с деталями

.Net Core Identity Localization

Вотдва простых шага

1. Упоминание об ошибке в описателе в файле startup.cs

    services.AddIdentity<ApplicationUser, IdentityRole>(config =>
            {
                // Your Cookie settings
            }).AddErrorDescriber<MultilanguageIdentityErrorDescriber>()

Класс ErrorDescriber с введенным языковым ресурсом

    public class MultilanguageIdentityErrorDescriber : IdentityErrorDescriber
    {
        private readonly IStringLocalizer<SharedResource> _localizer;

        public MultilanguageIdentityErrorDescriber(IStringLocalizer<SharedResource> localizer)
        {
            _localizer = localizer;
        }

        public override IdentityError DuplicateEmail(string email)
        {
            return new IdentityError()
            {
                Code = nameof(DuplicateEmail),
                Description = string.Format(_localizer["Email {0} is already taken."], email)
            };
        }
        public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = _localizer["An unknown failure has occurred."] }; }
        public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = _localizer["Optimistic concurrency failure, object has been modified."] }; }
        public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = _localizer["Incorrect password."] }; }
        public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = _localizer["Invalid token."] }; }
        public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = _localizer["A user with this login already exists."] }; }
        public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = string.Format(_localizer["User name {0} is invalid, can only contain letters or digits."] , userName) }; }
        public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = string.Format(_localizer["Email {0} is invalid."] , email) }; }
        public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = string.Format(_localizer["User Name {0} is already taken."] , userName) }; }
        //public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = string.Format(_localizer["Email {0} is already taken."] , email) }; }
        public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = string.Format(_localizer["Role name {0} is invalid."], role) }; }
        public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = string.Format(_localizer["Role name {0} is already taken."], role) }; }
        public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = _localizer["User already has a password set."] }; }
        public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = _localizer["Lockout is not enabled for this user."] }; }
        public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = string.Format(_localizer["User already in role {0}."], role) }; }
        public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = string.Format(_localizer["User is not in role {0}."], role) }; }
        public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = string.Format(_localizer["Passwords must be at least {0} characters."], length) }; }
        public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = _localizer["Passwords must have at least one non alphanumeric character."] }; }
        public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = _localizer["Passwords must have at least one digit ('0'-'9')."] }; }
        public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = _localizer["Passwords must have at least one lowercase ('a'-'z')."] }; }
        public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = _localizer["Passwords must have at least one uppercase ('A'-'Z')."] }; }
        // DuplicateUserName, InvalidEmail, DuplicateUserName etc
    }

Answer 2

Создайте Resources папку в корне и добавьте SharedResource.resx в папку. Например,

Помимо решения Икрама Шаха, вы также можете использовать IStringLocalizerFactory для его реализации

public class LocalizedIdentityErrorDescriber : IdentityErrorDescriber
{
    private readonly IStringLocalizer _localizer;

    public SpanishIdentityErrorDescriber(IStringLocalizerFactory factory)
    {
        var type = typeof(SharedResource);
        var assemblyName = new AssemblyName(type.GetTypeInfo().Assembly.FullName);
        _localizer = factory.Create("SharedResource", assemblyName.Name);
   }
    public override IdentityError DuplicateEmail(string email)
    {
        return new IdentityError
        {
            Code = nameof(DuplicateEmail),
            Description = 
            string.Format(_localizer["Email {0} is already taken."], userName)
        };
    }

//...