使用继承的 RegularExpressionAttribute 进行 ASP.NET MVC 数据注释客户端验证

发布于 2024-09-18 03:42:08 字数 518 浏览 6 评论 0原文

为了保持模型验证干净，我想实现自己的验证属性，例如 PhoneNumberAttribute 和 EmailAttribute。其中一些可以有利地实现为从 RegularExpressionAttribute 继承的简单类。

但是，我注意到这样做会破坏这些属性的客户端验证。我假设某种类型绑定在某处失败。

有什么想法可以让客户端验证正常工作吗？

代码示例：

public sealed class MailAddressAttribute : RegularExpressionAttribute
{
    public MailAddressAttribute()
        : base(@"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$")
    {
    }
}

原文

To keep my model validation clean I would like to implement my own validation attributes, like PhoneNumberAttribute and EmailAttribute. Some of these can favorably be be implemented as simple classes that inherit from RegularExpressionAttribute.

However, I noticed that doing this breaks client side validation of these attributes. I am assuming that there is some kind of type binding that fails somewhere.

Any ideas what I can do to get client side validation working?

Code example:

public sealed class MailAddressAttribute : RegularExpressionAttribute
{
    public MailAddressAttribute()
        : base(@"^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$")
    {
    }
}

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眼中杀气 2024-09-25 03:42:08

您需要为自定义属性注册客户端验证适配器。在这种情况下，您可以使用 System.Web.Mvc 中现有的 RegularExpressionAttributeAdapter，因为它的工作方式应该与标准正则表达式属性完全相同。然后在您的应用程序开始使用时注册它：

DataAnnotationsModelValidatorProvider.RegisterAdapter(
    typeof(MailAddressAttribute),
    typeof(RegularExpressionAttributeAdapter));

如果您编写一个需要自定义客户端验证的属性，您可以通过继承 DataAnnotationsModelValidator （另请参阅菲尔·哈克的博客）。

You'll need to register a client-side validation adapter for your custom attribute. In this case you can use the existing RegularExpressionAttributeAdapter in System.Web.Mvc, since it should work exactly the same as the standard regex attribute. Then register it when your application start using:

DataAnnotationsModelValidatorProvider.RegisterAdapter(
    typeof(MailAddressAttribute),
    typeof(RegularExpressionAttributeAdapter));

Should you write an attribute that requires custom client-side validation, you can implement your own adapter by inheriting from DataAnnotationsModelValidator (see also Phil Haack's blog).

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猫弦 2024-09-25 03:42:08

正确答案的延伸

public class EmailAttribute : RegularExpressionAttribute
{
    static EmailAttribute()
    {
        DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(EmailAttribute), typeof(RegularExpressionAttributeAdapter));
    }

    public EmailAttribute()
        : base(@"^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$") //^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$
    {

    }
}

extending of the right answer

public class EmailAttribute : RegularExpressionAttribute
{
    static EmailAttribute()
    {
        DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(EmailAttribute), typeof(RegularExpressionAttributeAdapter));
    }

    public EmailAttribute()
        : base(@"^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$") //^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$
    {

    }
}

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