在 C# 中将 MetadataType 添加到派生类

发布于 2024-11-30 12:02:53 字数 1431 浏览 0 评论 0原文

我有一个名为的类

public partial class Contact
{
   public int Id { get; set; }
   public string Title { get; set; }
   public string FirstName { get; set; }
   public string LastName { get; set; }
}

我有另一个名为的类

public partial class Person : Contact
{
   public string Occupation { get; set; }
   public string Country { get; set; }
}

我有我的第三个类名为Person，它被声明为Partial，第四个类名为PersonMetaData，用于声明注释

 [MetadataType(typeof(PersonMetadata))]
    public partial class Person : Contact
    {

    }

    public class PersonMetadata
    {
         [StringLength(20, ErrorMessageResourceName = "FirstNameLength",   
         ErrorMessageResourceType = typeof(BasicErrors))]
        [Required(ErrorMessageResourceName = "FirstNameRequired",  
          ErrorMessageResourceType  = typeof(BasicErrors))]
        public string FirstName { get; set; }

        [StringLength(20, ErrorMessageResourceName = "LastNameLength", 
         ErrorMessageResourceType = typeof(BasicErrors))]
        [Required(ErrorMessageResourceName = "LastNameRequired", ErrorMessageResourceType 
         = typeof(BasicErrors))]
        public string LastName { get; set; }
    }

在我的MVC视图中，我制作了一个基于Person的强类型页面？问题是，必需的和字符串长度验证不起作用。当继承类并创建分部类来引用 MetadataType 时，会出现此问题。

如果没有继承，那么 MetadataType 在调用部分类时可以正常工作。

将 MetadataType 用于派生类并与其一起使用部分时有任何解决方案吗？

谢谢

原文

I have a Class called

public partial class Contact
{
   public int Id { get; set; }
   public string Title { get; set; }
   public string FirstName { get; set; }
   public string LastName { get; set; }
}

I have another Class called

public partial class Person : Contact
{
   public string Occupation { get; set; }
   public string Country { get; set; }
}

I have my third class called Person which is declared Partial and Fourth class called PersonMetaData used to declare annotations

 [MetadataType(typeof(PersonMetadata))]
    public partial class Person : Contact
    {

    }

    public class PersonMetadata
    {
         [StringLength(20, ErrorMessageResourceName = "FirstNameLength",   
         ErrorMessageResourceType = typeof(BasicErrors))]
        [Required(ErrorMessageResourceName = "FirstNameRequired",  
          ErrorMessageResourceType  = typeof(BasicErrors))]
        public string FirstName { get; set; }

        [StringLength(20, ErrorMessageResourceName = "LastNameLength", 
         ErrorMessageResourceType = typeof(BasicErrors))]
        [Required(ErrorMessageResourceName = "LastNameRequired", ErrorMessageResourceType 
         = typeof(BasicErrors))]
        public string LastName { get; set; }
    }

In my MVC View, I have made a strongly typed page based on Person? The problem is, required and string length validations do not work. This problem occurs when inheriting a class and creating a partial class to reference the MetadataType.

If there is no inheritance then MetadataType works fine when calling a Partial Class.

Any Solutions when using MetadataType for derived class and using partial with it ??

Thanks

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白况 2024-12-07 12:02:53

这是MVC2中的问题。然而它在 MVC3 中工作。请参阅以下文章：

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恏ㄋ傷疤忘ㄋ疼 2024-12-07 12:02:53

删除该部分并尝试以下操作：

[MetadataType(typeof(PersonMetadata))]
public partial class Person : Contact
{
   public string Occupation { get; set; }
   public string Country { get; set; }
}

Remove that partial and try this:

[MetadataType(typeof(PersonMetadata))]
public partial class Person : Contact
{
   public string Occupation { get; set; }
   public string Country { get; set; }
}

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~没有更多了~