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asp.net-mvc-3 – ASP.NET MVC3条件验证EditorTemplate的嵌套模型

来源:互联网 收集:自由互联 发布时间:2021-06-24
假设您有一个viewModel: public class CreatePersonViewModel{ [Required] public bool HasDeliveryAddress {get;set;} // Should only be validated when HasDeliveryAddress is true [RequiredIf("HasDeliveryAddress", true)] public Address Addr
假设您有一个viewModel:

public class CreatePersonViewModel
{
    [Required]
    public bool HasDeliveryAddress {get;set;}

    // Should only be validated when HasDeliveryAddress is true
    [RequiredIf("HasDeliveryAddress", true)]
    public Address Address { get; set; }
}

模型地址将如下所示:

public class Address : IValidatableObject
{
    [Required]
    public string City { get; set; }
    [Required]        
    public string HouseNr { get; set; }
    [Required]
    public string CountryCode { get; set; }
    [Required]
    public string FirstName { get; set; }
    [Required]
    public string LastName { get; set; }
    [Required]
    public string ZipCode { get; set; }
    [Required]
    public string Street { get; set; }

    #region IValidatableObject Members

    public IEnumerable<ValidationResult> Validate(ValidationContext validationContext)
    {
        string[] requiredFields;
        var results = new List<ValidationResult>();

        // some custom validations here (I removed them to keep it simple)

        return results;
    }

    #endregion
}

有些人会建议为Address创建一个viewmodel并在那里添加一些自定义逻辑,但我需要一个Address实例传递给我的EditorTemplate for Address.

这里的主要问题是Address的验证是在我的PersonViewModel验证之前完成的,所以我无法阻止它.

注意:RequiredIfAttribute是一个自定义属性,它可以完成我想要的简单类型.

如果您使用 FluentValidation.NET而不是DataAnnotations或IValidatableObject,在复杂的情况下会严重限制验证功能,那本来就是小菜一碟:

public class CreatePersonViewModelValidator : AbstractValidator<CreatePersonViewModel>
{
    public CreatePersonViewModelValidator()
    {
        RuleFor(x => x.Address)
            .SetValidator(new AddressValidator())
            .When(x => x.HasDeliveryAddress);
    }
}
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