c# - 删除验证消息名称中的集合索引

Question

我使用 FluentValidation 8 进行了以下验证:

RuleFor(x => x.Emails)
    .NotNull()
    .ForEach(x => {
        x.SetValidator(y => new InlineValidator<String>
        {
            z => z.RuleFor(u => u).EmailAddress().WithMessage("Email is invalid")
        });
    });

当我插入无效的电子邮件时，错误的名称是 "Emails[0]"。

我想删除索引并简单地使用"Emails"。

Answer 1

如果您想为您的消息添加电子邮件前缀，请在您的消息中使用“{PropertyValue}”:

public class ModelValidator : AbstractValidator<Model>
{
    public ModelValidator()
    {
        RuleFor(x => x.Emails)
            .NotNull()
            .ForEach(x =>
            {
                x.SetValidator(y => new InlineValidator<string>()
                {
                    z => z.RuleFor(u => u)
                    .EmailAddress()
                    .WithMessage("{PropertyValue} : Email is invalid!")
                });
            });
    }
}

输出:“emailexample.com:电子邮件无效!”

可以通过扩展为默认消息添加前缀(内置方法):

public static IRuleBuilderOptions<string, string> AddMessagePrefix(
    this IRuleBuilderOptions<string, string> ruleBuilderOptions)
{
    ruleBuilderOptions.Configure(configurator =>
    {
        configurator.MessageBuilder = ctx =>
        {
            return $"{ctx.Instance}: {ctx.GetDefaultMessage()}";
        };
    });

    return ruleBuilderOptions;
}

用法:

public class ModelValidator : AbstractValidator<Model>
{
    public ModelValidator()
    {
        RuleFor(x => x.Emails)
            .NotNull()
            .ForEach(x =>
            {
                x.SetValidator(y => new InlineValidator<string>()
                {
                    z => z.RuleFor(u => u)
                    .EmailAddress()
                    .AddMessagePrefix()
                });
            });
    }
}

输出: "emailexample.com: '' неверный email адрес."