如何本地化ASP.NET Identity UserName和Password错误消息？

Question

是否可以为"系统"ASP.NET Identity v1错误消息提供本地化字符串,例如" 名称XYZ已被占用 "或" 用户名XYZ无效,只能包含字母或数字 "？

Answer 1

对于ASP.NET Core:(Microsoft.AspNetCore.Identity 1.0.0)

创建一个继承IdentityErrorDescriber的类并覆盖所需的错误消息.

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

在Startup类中,在ConfigureServices中注册自定义ErrorDescriber:

services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddErrorDescriber<CustomIdentityErrorDescriber>(); // Add this line

更新: 您可以在下面找到西班牙语和葡萄牙语的已翻译版本.仔细检查一下!

public class SpanishIdentityErrorDescriber : IdentityErrorDescriber
{
    public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = $"Ha ocurrido un error." }; }
    public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = "Ha ocurrido un error, el objeto ya ha sido modificado (Optimistic concurrency failure)." }; }
    public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = "Password Incorrecta." }; }
    public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = "Ha ingresado un código Inválido." }; }
    public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = "Un usuario con ese nombre ya existe." }; }
    public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = $"El nombre de usuario '{userName}' es inválido. Solo puede contener letras y números." }; }
    public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = $"La dirección de email '{email}' es incorrecta."  }; }
    public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = $"El usuario '{userName}' ya existe, por favor ingrese un nombre diferente."  }; }
    public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = $"La direccion de email '{email}' ya se encuentra registrada. Puede recupar su contraseña para ingresar nuevamente al sistema."  }; }
    public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = $"El nombre de rol '{role}' es inválido."  }; }
    public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = $"El nombre de rol '{role}' ya existe."  }; }
    public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = "El usuario ya tiene contraseña." }; }
    public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = "El bloqueo no esta habilitado para este usuario." }; }
    public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = $"El usuario ya es parte del rol '{role}'."  }; }
    public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = $"El usuario no es parte del rol '{role}'."  }; }
    public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = $"La contraseña deben tener un largo mínimo de {length} caracteres."  }; }
    public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "La contraseña debe contener al menos un caracter alfanumérico." }; }
    public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = "La contraseña debe incluir al menos un dígito ('0'-'9')." }; }
    public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = "La contraseña debe incluir al menos una letra minúscula ('a'-'z')." }; }
    public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = "La contraseña debe incluir al menos una letra MAYÚSCULA ('A'-'Z')." }; }
}

葡萄牙语:(非常感谢furlanrapha)

public class PortugueseIdentityErrorDescriber : IdentityErrorDescriber
{
    public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = $"Um erro desconhecido ocorreu." }; }
    public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = "Falha de concorrência otimista, o objeto foi modificado." }; }
    public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = "Senha incorreta." }; }
    public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = "Token inválido." }; }
    public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = "Já existe um usuário com este login." }; }
    public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = $"Login '{userName}' é inválido, pode conter apenas letras ou dígitos." }; }
    public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = $"Email '{email}' é inválido." }; }
    public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = $"Login '{userName}' já está sendo utilizado." }; }
    public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = $"Email '{email}' já está sendo utilizado." }; }
    public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = $"A permissão '{role}' é inválida." }; }
    public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = $"A permissão '{role}' já está sendo utilizada." }; }
    public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = "Usuário já possui uma senha definida." }; }
    public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = "Lockout não está habilitado para este usuário." }; }
    public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = $"Usuário já possui a permissão '{role}'." }; }
    public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = $"Usuário não tem a permissão '{role}'." }; }
    public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = $"Senhas devem conter ao menos {length} caracteres." }; }
    public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "Senhas devem conter ao menos um caracter não alfanumérico." }; }
    public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = "Senhas devem conter ao menos um digito ('0'-'9')." }; }
    public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = "Senhas devem conter ao menos um caracter em caixa baixa ('a'-'z')." }; }
    public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = "Senhas devem conter ao menos um caracter em caixa alta ('A'-'Z')." }; }
}

Answer 2

自2014年3月20日发布的身份版本2起,您现在可以拥有本地化的错误消息.

首先安装身份本地化包.

Install-Package Microsoft.AspNet.Identity.Core.fr

然后必须设置适当的文化以获取本地化消息,例如,在web.config中设置文化的一种方法

<system.web>
      <globalization culture="fr-FR" uiCulture="fr"/>
</system.web>

Answer 3

ASP NET核心解决方法(25.11.2016)

您可以将IStringLocalizer注入自定义IdentityErrorDescriber

1)创建自定义IdentityErrorDescriber(参见Gerardo Grignoli回答)

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)
        };
    }

    // DuplicateUserName, InvalidEmail, DuplicateUserName etc
}

2)在Startup.cs中注册MultilanguageIdentityErrorDescriber

services.AddIdentity<IdentityUser, IdentityRole>()
            .AddErrorDescriber<MultilanguageIdentityErrorDescriber>()
            .AddDefaultTokenProviders();

3)向SharedResource.language.resx添加错误消息.

Answer 4

还没有,我们有一个跟踪此工作项的错误,以允许指定资源的来源.

Answer 5

我遇到了同样的问题,发现了一个快速而肮脏的解决方法.我Microsoft.AspNet.Identity.Core使用DotPeek 查看了程序集内部(我假设任何C#反编译器都会这样做)并找到两个负责此类消息的类:

• Microsoft.AspNet.Identity.UserValidator<TUser> (用户名相关)
• Microsoft.AspNet.Identity.MinimumLengthValidator (密码相关)

这些类不包含任何外部引用(除了您要替换的字符串资源之外),因此在您自己的代码中重新实现它们应该相当简单.

在这样做之后,不要忘记在你的正确使用它们UserManager:

UserManager.UserValidator = new MyCustomUserValidator<MyUserType>(UserManager);
UserManager.PasswordValidator = new MyCustomMinimumLengthValidator(6);

Answer 6

根据此处的答案，我为基于 MVC Core 2.2 构建的多语言网站制作了自己的实现，其中字符串无法进行硬编码。

我使用带有自动生成设计器的基本资源文件来获取字符串，执行此操作的代码如下所示：

public class LocalizedIdentityErrorDescriber : IdentityErrorDescriber
{
    private ResourceManager ResourceManager { get; set; }

    public LocalizedIdentityErrorDescriber()
    {
        ResourceManager = Translations.ResourceManager;
    }

    public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = Translations.Validation_DefaultError }; }
    public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = Translations.Validation_ConcurrencyFailure }; }
    public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = Translations.Validation_PasswordMismatch }; }
    public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = Translations.Validation_InvalidToken }; }
    public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = Translations.Validation_LoginAlreadyAssociated }; }
    public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = string.Format(Translations.Validation_InvalidUserName, userName) }; }
    public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = string.Format(Translations.Validation_InvalidEmail, email) }; }
    public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = string.Format(Translations.Validation_DuplicateUserName, userName) }; }
    public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = string.Format(Translations.Validation_DuplicateEmail, email) }; }
    public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = string.Format(Translations.Validation_InvalidRoleName, role) }; }
    public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = string.Format(Translations.Validation_DuplicateRoleName, role) }; }
    public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = Translations.Validation_UserAlreadyHasPassword }; }
    public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = Translations.Validation_UserLockoutNotEnabled }; }
    public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = string.Format(Translations.Validation_UserAlreadyInRole, role) }; }
    public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = string.Format(Translations.Validation_UserNotInRole, role) }; }
    public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = string.Format(Translations.Validation_PasswordTooShort, length) }; }
    public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = Translations.Validation_PasswordRequiresNonAlphanumeric }; }
    public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = Translations.Validation_PasswordRequiresDigit }; }
    public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = Translations.Validation_PasswordRequiresLower }; }
    public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = Translations.Validation_PasswordRequiresUpper }; }
}

然后将其集成到 Startup.cs 中的身份管道中

services.AddDefaultIdentity<User>()
    .AddErrorDescriber<LocalizedIdentityErrorDescriber>()
    .AddDefaultTokenProviders();

最后，我在 Translations.resx 和子资源文件中定义了字符串，其中键名为 Validation_DefaultError、Validation_PasswordMismatch 等。

Answer 7

波兰语版本

\n\n

public class CustomErrorDescriber : IdentityErrorDescriber\n{\n    public override IdentityError DefaultError() {      return new IdentityError { Code = nameof(DefaultError), Description = $"Wyst\xc4\x85pi\xc5\x82 nieanany b\xc5\x82\xc4\x85d." }; }\n    public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = "B\xc5\x82\xc4\x85d wsp\xc3\xb3\xc5\x82bie\xc5\xbcno\xc5\x9bci, obiekt zosta\xc5\x82 zmodyfikowany." }; }\n    public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = "Nieprawid\xc5\x82owe has\xc5\x82o." }; }\n    public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = "Nieprawid\xc5\x82owy token." }; }\n    public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = "U\xc5\xbcytkownik o takiej nazwie ju\xc5\xbc istnieje." }; }\n    public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = $"Nazwa u\xc5\xbcytkownika \\"\'{userName}\'\\" jest nieprawid\xc5\x82owa, mo\xc5\xbce posiada\xc4\x87 tylko znaki i cyfry." }; }\n    public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = $"Email \\"\'{email}\'\\" jest nieprawid\xc5\x82owy." }; }\n    public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = $"Nazwa u\xc5\xbcytkownika \\"\'{userName}\'\\" jest zaj\xc4\x99ta." }; }\n    public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = $"Adres \\"\'{email}\'\\" jest zaj\xc4\x99ty." }; }\n    public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = $"Grupa \\"\'{role}\'\\" jest nieprawid\xc5\x82owa." }; }\n    public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = $"Nazwa grupy \\"\'{role}\'\\" jest zaj\xc4\x99ta." }; }\n    public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = "Has\xc5\x82o u\xc5\xbcytkownika jest ju\xc5\xbc ustawione." }; }\n    public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = "Blokada nie jest ustawiona dla tego u\xc5\xbcytkownika." }; }\n    public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = $"U\xc5\xbcytkownik ma ju\xc5\xbc przypisan\xc4\x85 grup\xc4\x99 \\"\'{role}\'\\"." }; }\n    public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = $"U\xc5\xbcytkownik nie nale\xc5\xbcy do grupy \\"\'{role}\'\\"." }; }\n    public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = $"Has\xc5\x82o musi posiada\xc4\x87 conajmniej {length} znak\xc3\xb3w." }; }\n    public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "Has\xc5\x82o musi posiada\xc4\x87 przynajmniej jeden znak alfanumeryczny." }; }\n    public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = "Has\xc5\x82o musi posiada\xc4\x87 przynajmniej jedn\xc4\x85 cyfr\xc4\x99 (\'0\'-\'9\')." }; }\n    public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = "Has\xc5\x82o musi posiada\xc4\x87 przynajmniej jedn\xc4\x85 ma\xc5\x82\xc4\x85 liter\xc4\x99 (\'a\'-\'z\')." }; }\n    public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = "Has\xc5\x82o musi posiada\xc4\x87 przynajmniej jedn\xc4\x85 wielk\xc4\x85 liter\xc4\x99 (\'A\'-\'Z\')." }; }\n    public override IdentityError PasswordRequiresUniqueChars(int uniqueChars) { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "Has\xc5\x82o musi posiada\xc4\x87 przynajmniej jeden znak specjalny." }; }\n}\n

\n

Answer 8

这是给亲爱的波斯语（波斯）讲者的

using Microsoft.AspNetCore.Identity;

namespace WebApplication.Admin.Helpers
{
    public class CustomIdentityErrorDescriber : IdentityErrorDescriber
    {
        public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = $"?? ???? ???????? ?? ???? ???." }; }
        public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = "????? ???? ????? ?????? ??????? ? ??????? ??? ????? ???????? ????? ???." }; }
        public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = "???? ???? ?????? ???." }; }
        public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = "???? ???? ??????? ???." }; }
        public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = "??? ????? ???? ????? ???????." }; }
        public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = $"??? ?????? '{userName}' ??????? ???? ??? ?? ????? ???? ???? ??? ????? ????." }; }
        public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = $"????? '{email}' ??????? ???." }; }
        public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = $"??? ??? ?????? '{userName}' ?? ????? ????? ?????? ????? ???." }; }
        public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = $"????? '{email}' ?? ????? ????? ?????? ????? ???." }; }
        public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = $"??? ??? '{role}' ??????? ???." }; }
        public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = $"??? ??? ??? '{role}' ?? ????? ????? ?????? ????? ???." }; }
        public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = "?????? ???? ????? ???? ????? ???????." }; }
        public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = "??? ????? ???? ???." }; }
        public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = $"??? ??? '{role}' ???? ?? ??? ????? ?????? ????? ???." }; }
        public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = $"??? ??? '{role}' ???? ?? ??? ????? ?????? ?????? ???." }; }
        public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = $"???? ???? ???? ????? {length} ??????? ????." }; }
        public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "???? ???? ???? ????? ?? ??????? ??? ?? ???? ????? ????? ????." }; }
        public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = "???? ???? ???? ????? ?? ??? ????? ????." }; }
        public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = "???? ???? ???? ????? ?? ???? ???? ????? ????." }; }
        public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = "???? ???? ???? ????? ?? ???? ???? ????? ????." }; }
        public override IdentityError RecoveryCodeRedemptionFailed() { return new IdentityError { Code = nameof(RecoveryCodeRedemptionFailed), Description = "??????? ?????? ???." }; }
        public override IdentityError PasswordRequiresUniqueChars(int uniqueChars) { return new IdentityError { Code = nameof(PasswordRequiresUniqueChars), Description = $"?????? ???? ???? ????? ????? {0} ??? ?????? ????." }; }
    }
}

Answer 9

德文版 @GerardoGrignoli的解决方案

public class CustomIdentityErrorDescriber : IdentityErrorDescriber
{
    public override IdentityError DefaultError() { return new IdentityError { Code = nameof(DefaultError), Description = $"Ein unbekannter Fehler ist aufgetreten." }; }
    public override IdentityError ConcurrencyFailure() { return new IdentityError { Code = nameof(ConcurrencyFailure), Description = "Fehler bzgl. der Optimistischen Nebenläufigkeit, das Objekt wurde verändert." }; }
    public override IdentityError PasswordMismatch() { return new IdentityError { Code = nameof(PasswordMismatch), Description = "Ungültiges Passwort." }; }
    public override IdentityError InvalidToken() { return new IdentityError { Code = nameof(InvalidToken), Description = "Ungültiger Token." }; }
    public override IdentityError LoginAlreadyAssociated() { return new IdentityError { Code = nameof(LoginAlreadyAssociated), Description = "Es ist bereits ein Nutzer mit diesem Login vorhanden." }; }
    public override IdentityError InvalidUserName(string userName) { return new IdentityError { Code = nameof(InvalidUserName), Description = $"Nutzername '{userName}' ist ungültig. Erlaubt sind nur Buchstaben und Zahlen." }; }
    public override IdentityError InvalidEmail(string email) { return new IdentityError { Code = nameof(InvalidEmail), Description = $"E-Mail '{email}' ist ungültig." }; }
    public override IdentityError DuplicateUserName(string userName) { return new IdentityError { Code = nameof(DuplicateUserName), Description = $"Nutzername '{userName}' ist bereits vergeben." }; }
    public override IdentityError DuplicateEmail(string email) { return new IdentityError { Code = nameof(DuplicateEmail), Description = $"E-Mail '{email}' ist bereits vergeben." }; }
    public override IdentityError InvalidRoleName(string role) { return new IdentityError { Code = nameof(InvalidRoleName), Description = $"Rollen-Name '{role}' ist ungültig." }; }
    public override IdentityError DuplicateRoleName(string role) { return new IdentityError { Code = nameof(DuplicateRoleName), Description = $"Rollen-Name '{role}' ist bereits vergeben." }; }
    public override IdentityError UserAlreadyHasPassword() { return new IdentityError { Code = nameof(UserAlreadyHasPassword), Description = "Nutzer hat bereits ein Passwort gesetzt." }; }
    public override IdentityError UserLockoutNotEnabled() { return new IdentityError { Code = nameof(UserLockoutNotEnabled), Description = "Aussperrung ist für diesen Nutzer nicht aktiviert." }; }
    public override IdentityError UserAlreadyInRole(string role) { return new IdentityError { Code = nameof(UserAlreadyInRole), Description = $"Nutzer ist bereits in Rolle '{role}'." }; }
    public override IdentityError UserNotInRole(string role) { return new IdentityError { Code = nameof(UserNotInRole), Description = $"Nutzer ist nicht in Rolle '{role}'." }; }
    public override IdentityError PasswordTooShort(int length) { return new IdentityError { Code = nameof(PasswordTooShort), Description = $"Passwörter müssen mindestens {length} Zeichen lang sein." }; }
    public override IdentityError PasswordRequiresNonAlphanumeric() { return new IdentityError { Code = nameof(PasswordRequiresNonAlphanumeric), Description = "Passwörter müssen mindestens ein Sonderzeichen enthalten." }; }
    public override IdentityError PasswordRequiresDigit() { return new IdentityError { Code = nameof(PasswordRequiresDigit), Description = "Passwörter müssen mindestens eine Ziffer enthalten ('0'-'9')." }; }
    public override IdentityError PasswordRequiresLower() { return new IdentityError { Code = nameof(PasswordRequiresLower), Description = "Passwörter müssen mindestens einen Kleinbuchstaben enthalten ('a'-'z')." }; }
    public override IdentityError PasswordRequiresUpper() { return new IdentityError { Code = nameof(PasswordRequiresUpper), Description = "Passwörter müssen mindestens einen Großbuchstaben enthalten ('A'-'Z')." }; }
}