ASP.net核心MVC6数据注释关注点分离

Question

我希望将数据注释属性和IClientValidatable接口放在两个独立的程序集中，以便分离关注点。一种称为通用，另一种称为Comman.Web。

这些链接解释了它在MVC 5中的工作原理：

Keeping IClientValidatable outside the model layer

http://www.eidias.com/blog/2012/5/25/mvc-custom-validator-with-client-side-validation

不幸的是，在MVC6中没有

DataAnnotationsModelValidatorProvider.RegisterAdapter(
    typeof(MyValidationAttribute), 
    typeof(MyValidationAttributeAdapter)
);

它在ASP.net核心MVC6中是如何工作的？我使用RC1。

Answer 1

在Startup.cs的ConfigureServices方法中：

services.AddMvc(options =>
{
    options.ModelValidatorProviders.Insert(0, new CustomModelValidatorProvider());
});

随着ASP.NET Core1.0API的更改，您必须调整您的代码。您可以在asp.net存储库中找到一个示例实现：DataAnnotationsModelValidatorProvider.cs

Answer 2

在ASP.net Core1.0中，我可以通过替换IValidationAttributeAdapterProvider服务来做到这一点。

public class CustomValidationAttributeAdapterProvider : IValidationAttributeAdapterProvider
{
    public IValidationAttributeAdapterProvider internalImpl;

    public CustomValidationAttributeAdapterProvider()
    {
        internalImpl = new ValidationAttributeAdapterProvider();
    }

    public IAttributeAdapter GetAttributeAdapter(ValidationAttribute attribute, IStringLocalizer stringLocalizer)
    {
        IAttributeAdapter adapter = internalImpl.GetAttributeAdapter(attribute, stringLocalizer);

        if (adapter == null)
        {
            var type = attribute.GetType();

            if (type == typeof(CustomValidatorAttribute))
            {
                adapter = new CustomNumberValidatorAdapter((CustomValidatorAttribute)attribute, stringLocalizer);
            }
        }

        return adapter;
    }
}

在启动ConfigureServices中

if (services.Any(f => f.ServiceType == typeof(IValidationAttributeAdapterProvider)))
{
    services.Remove(services.Single(f => f.ServiceType == typeof(IValidationAttributeAdapterProvider)));
}
services.AddScoped<IValidationAttributeAdapterProvider, CustomValidationAttributeAdapterProvider>();