验证问题。 [英] Validation Issue.

问题描述

DataAnnotations不适用于好友类。以下代码始终验证为true。为什么？

var varValid = Validator.TryValidateObject（customer，Context，results，true）;

这里是伙伴类。

 
公共部分类客户
 {
公共字符串名称{get;组; } 
 public int Age {get;组; } 
} 
 
 [元数据类型（typeof（CustomerMetaData））] 
公共部分类客户
 {
类CustomerMetaData 
 {
 [必需（ErrorMessage ="您必须为客户提供名称。）] 
 public string Name {get;组; } 
} 
} 
 
 

解决方案

你好，

 

欢迎光临ADO.NET实体框架和LINQ to Entities论坛！

 

我认为你在.NET 4.0或Silverlight 3中使用Validator.TryValidateObject方法， http://msdn.microsoft.com/en-us/library/d d411772（VS.100）.aspx 。   您能否向我们提供有关此问题与实体框架相关的更多信息？  

 

此外，对于EF 4问题，请在预发布论坛上发帖以获得更好的支持，因为它仍然处于预发布状态， http://social.msdn.microsoft.com/Forums/en-US/ adonetefx / threads 。

 

度过愉快的一天！

 

 

最诚挚的问候，郎灵芝

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DataAnnotations does not work with buddy class. the following code always validate true. Why ?

var isValid = Validator.TryValidateObject(customer, Context, results, true);

and here is the buddy class.

public partial class Customer 
    { 
        public string Name { get; set; } 
        public int Age { get; set; } 
    }
    
    [MetadataType(typeof(CustomerMetaData))]
    public partial class Customer 
    { 
        class CustomerMetaData 
        { 
            [Required(ErrorMessage = "You must supply a name for a customer.")]        
            public string Name { get; set; } 
        } 
    }

解决方案

Hello,

 

Welcome to ADO.NET Entity Framework and LINQ to Entities forum!

 

I think you are using the Validator.TryValidateObject method in .NET 4.0 or Silverlight 3, http://msdn.microsoft.com/en-us/library/dd411772(VS.100).aspx.   Could you please provide us with more information about how this question is related to Entity Framework?  

 

Besides, for EF 4 issues please post in the pre-release forum for better support, since it is still in pre-release status, http://social.msdn.microsoft.com/Forums/en-US/adonetefx/threads.

 

Have a nice day!

 

 

Best Regards,
Lingzhi Sun

MSDN Subscriber Support in Forum

If you have any feedback on our support, please contact [e-mail]

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