如何对模型对象执行复杂的验证？

发布于 2025-01-04 04:00:42 字数 632 浏览 3 评论 0原文

我的项目位于 ASP.NET MVC 3 中。在我的域中，我有一个由实体框架定义的模型对象。为了验证属性，我只需扩展生成的 EF 对象并添加一个包含所有验证属性的元数据类。

[MetadataType(typeof(ContactInformationMetaData))]
public partial class ContactInformation
{

}

public class ContactInformationMetaData
{
    [Required]
    public string FirstName { get; set; }

    [Required]
    public string LastName { get; set; }

    public string Phone { get; set; }

    [EmailValidator]
    public string Email { get; set; }
}

这在大多数情况下都很有效，但现在我有一个更复杂的场景。我不希望“电话”和“电子邮件”属性是必需的，但我希望其中之一是必需的。换句话说，我想要求设置电子邮件或电话或两者都设置，但不能都不设置。

我将如何执行这样的复杂验证？如果我创建一个自定义验证属性，我应该把它放在哪里以及它如何工作？

原文

My project is in ASP.NET MVC 3. In my domain I have a model object defined by Entity Framework. In order to validate properties I simply extend the generated EF object and add a metadata class which contains all my validation attributes.

[MetadataType(typeof(ContactInformationMetaData))]
public partial class ContactInformation
{

}

public class ContactInformationMetaData
{
    [Required]
    public string FirstName { get; set; }

    [Required]
    public string LastName { get; set; }

    public string Phone { get; set; }

    [EmailValidator]
    public string Email { get; set; }
}

This works great most of the time but now I have a more complex scenario. I don't want the Phone and Email properties to be required but I want ONE of them to be required. In other words, I want to require that either email or phone or both be set, but not none.

How would I perform complex validation like this? If I create a custom validation attribute where would I put it and how would that work?

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