Asp.net mvc 如何使用FluentValidation同时为多个字段创建规则

我需要在Asp.net MVC项目中验证以下情况：如果字段ServicoEmail、ServicoWebsite、ServicoBlog、SERVICOREDESSOCIAL和ServicoMensagemInstantanea均为false，则返回错误消息。我试着做如下，但它不工作。。。有人知道如何帮助我吗

RuleFor(ps => new { ps.ServicoEmail, ps.ServicoWebsite, ps.ServicoBlog, ps.ServicoRedeSocial, ps.ServicoMensagemInstantanea })
    .Must(ps=> ps.ServicoEmail == false && ps.ServicoWebsite == false && ps.ServicoBlog == false && ps.ServicoRedeSocial == false && ps.ServicoMensagemInstantanea == false)
    .WithMessage("É necessário selecionar pelo menos um Tipo de Serviço.");

我的班级：

public abstract class ServicoWebCommand : Command
{
    public int Id { get; protected set; }

    public string Descricao { get; protected set; }

    public string FormatoCampo { get; protected set; }

    public bool ServicoEmail { get; protected set; }

    public bool ServicoWebsite { get; protected set; }

    public bool ServicoBlog { get; protected set; }

    public bool ServicoRedeSocial { get; protected set; }

    public bool ServicoMensagemInstantanea { get; protected set; }

    public bool PadraoSistema { get; protected set; }
}

---

您需要单独指定它们中的每一个，或者您可以指定一个自定义验证器

方式1： 然后编写验证程序实现：

public class ServicoValidator: AbstractValidator<ServicoWebCommand>
{
    public ServicoValidator()
    {
        RuleFor(t => t).Custom(ValidateServico);
    }


    private void ValidateServico(ServicoWebCommand ps, CustomContext validationContext)
    {
        if(ps.ServicoEmail == false && 
           ps.ServicoWebsite == false && 
           ps.ServicoBlog == false && 
           ps.ServicoRedeSocial == false && 
           ps.ServicoMensagemInstantanea == false)
         {
           validationContext.AddFailure("É necessário selecionar pelo menos um Tipo de Serviço.");
         }
    }
}

并编写验证方法，如下所示：

private bool Validate(ServicoWebCommand ps)
{
    if(ps.ServicoEmail == false && 
       ps.ServicoWebsite == false && 
       ps.ServicoBlog == false && 
       ps.ServicoRedeSocial == false && 
       ps.ServicoMensagemInstantanea == false) 
        return false;

    return true;
}

RuleFor(ps => ps).Must(ps => Validate(ps));

private bool Validate(ServicoWebCommand ps)
{
    if(ps.ServicoEmail == false && 
       ps.ServicoWebsite == false && 
       ps.ServicoBlog == false && 
       ps.ServicoRedeSocial == false && 
       ps.ServicoMensagemInstantanea == false) 
        return false;

    return true;
}