基于MetadataType ASP.Net C＃验证模型 [英] ASP.Net C# validating model based on MetadataType

问题描述

我的团队建设与MetadataType内部模型验证的ViewModels。我的问题是，我使用一个非MVC项目，我可以用它来验证模型？如果是的话，可以请您举个例子？

My team is building ViewModels with model validation inside the MetadataType. My question is that I'm using a non-MVC project, can I use it to validate the model? If yes, can you please give an example?

[MetadataType(typeof(PersonMetadata))]
public class Person
{
    public int ID { get; set; }
    public string Name { get; set; }
}
 public class PersonMetadata
 {
        [StringLength(255, ErrorMessage="Name is required"), Required]
        [DisplayName("Name")]
        public string Name { get; set; }
 }

感谢你在前进！

推荐答案

我不认为这是做事情的好办法。一般情况下，使用元数据类是一个设计的气味。我最近开到流利验证了.NET ，这看起来非常有前途，是可插拔的MVC但并不要求MVC

I don't think this is a good way to do things. In general, using Metadata classes is a design smell. I was recently turned on to Fluent Validation for .NET, which looks very promising, is pluggable for MVC but does not require MVC.

之所以这么说，它是可行的：

All that being said, it is doable:

        var person = new Person(); 
        var controllerSlashValidator = new FakeControllerValidator();
        ModelStateDictionary modelStateDictionary;
        bool isValid = controllerSlashValidator.Validate(person,out modelStateDictionary);

这code将需要 FakeControllerValidator 下面

    public class FakeControllerValidator: Controller
    {
        public FakeControllerValidator()
        {
            this.ControllerContext = new ControllerContext(new RequestContext(new HttpContextWrapper(System.Web.HttpContext.Current),new RouteData()),this);
        }
        public bool Validate(object model, out ModelStateDictionary modelStateDictionary)
        {
            bool isValid = TryValidateModel(model);
            modelStateDictionary = ModelState;
            return isValid;
        }
    }

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