ASP.NET MVC3 System.ComponentModel.DataAnnotations 和关联

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; }
}

但如果我添加到此类中

System.ComponentModel.DataAnnotations 

，则无法找到关联。

问题出在哪里？

Answer 1

对 Austin 答案的增强是使用 using 语句：

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

看起来您有两个冲突的名称空间。尝试将 Association 更改为 System.Data.Linq.Mapping.Association，因此它看起来像：

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