.net - 模型上的 mvc4 条件数据注释验证

Question

我有一个嵌套的 PersonalAddress View 模型。对于 CommAddress 和 PermanentAddress，所有属性都是必需的。

我在 mvc4 View 中为通信地址和永久地址使用 addressDetails 模型。但是对于永久地址，所有属性都不是强制性的。如果是永久地址，我如何使这些必需属性成为可选的。

 public class AddressDetails
{
    [Required(ErrorMessage="Error Message...")]
    public string Road { get; set; }

    [Required(ErrorMessage = "Error Message...")]
    public string Sector { get; set; }

    [Required(ErrorMessage = "Error Message...")]
    public string City { get; set; }

    [Required(ErrorMessage = "Error Message...")]
    public string Country { get; set; }
}

public class PersonalAddress
{

    public AddressDetails CommAddress { get; set; }

    public AddressDetails PermanentAddress { get; set; }
}

如有任何帮助，我们将不胜感激。

Answer 1

这对你有意义吗？

public class AddressDetails
{
    public string Road { get; set; }
    public string Sector { get; set; }
    public string City { get; set; }
    public string Country { get; set; }
}

[MetadataType(typeof(ReqAddressDetailsMetadata))]
public class ReqAddressDetail : AddressDetails
{
    public class ReqAddressDetailsMetadata
    {
        [Required(ErrorMessage = "Error Message...")]
        public string Road { get; set; }

        [Required(ErrorMessage = "Error Message...")]
        public string Sector { get; set; }

        [Required(ErrorMessage = "Error Message...")]
        public string City { get; set; }

        [Required(ErrorMessage = "Error Message...")]
        public string Country { get; set; }
    }
}

public class PersonalAddress
{

    public ReqAddressDetail CommAddress { get; set; }

    public AddressDetails PermanentAddress { get; set; }
}