ASP.NET MVC3 System.ComponentModel.DataAnnotations和协会

Question

这部分代码工作正常

[Association(Storage = "profile", ThisKey = "UserId", OtherKey = "UserId")] 
public Profile User { 
    get { return this.profile.Entity; } 
    set { this.profile.Entity = value; } 
} 

，但如果我在这个类

System.ComponentModel.DataAnnotations 

再加入，会找不到。

问题在哪里？

Answer 1

奥斯汀的答案的改进是采用了using声明：

using L2SAssociation = System.Data.Linq.Mapping.Association; 

[L2SAssociation(Storage = "profile", ThisKey = "UserId", OtherKey = "UserId")] 
public Profile User 
{ 
    get { return this.profile.Entity; } 
    set { this.profile.Entity = value; } 
} 

Answer 2

看起来你有两个冲突的命名空间。尝试改变协会System.Data.Linq.Mapping.Association，所以它看起来像：

[System.Data.Linq.Mapping.Association(Storage = "profile", ThisKey = "UserId", OtherKey = "UserId")] 
public Profile User { 
    get { return this.profile.Entity; } 
    set { this.profile.Entity = value; } 
}