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如果我首先嚐試使用代碼, 用戶類:asp.net MVC用戶朋友LazyLoad
public class User
{
[Key]
public Guid ID { get; set; }
[Required(ErrorMessage = "You must pick a user name")]
[DisplayName("User Name")]
public string Username { get; set; }
[Required]
public string FullName { get; set; }
[Required(ErrorMessage = "You give a valid email address")]
[DataType(DataType.EmailAddress)]
public string Email { get; set; }
[Required]
[DataType(DataType.Password)]
public string Password { get; set; }
[Required]
public DateTime CreateAt { get; set; }
public string Image { get; set; }
public bool RemeberMe { get; set; }
public bool Dummy { get; set; }
public virtual ICollection<UserFriend> Friends { get; set; }
}
的UserFriend類: - 保存用戶
public class UserFriend
{
[Key, Column(Order = 0), ForeignKey("User")]
public Guid UserId { get; set; }
public User User { get; set; }
[Key, Column(Order = 1), ForeignKey("Friend")]
public Guid FriendId { get; set; }
public User Friend { get; set; }
public DateTime DateCreated { get; set; }
}
用戶系統信息庫之間的關係:
public class UserRepository : IUserRepository
{
public User GetUserByName(string userName)
{
return context.Users.FirstOrDefault(u => u.Username == userName);
}
}
,如果我嘗試用戶這個方法:
var userRepo = new UserRepository(new DataContext());
User user = userRepo.GetUserByName(User.Identity.Name);
問題:user.Friends.first()。Friend返回null 如果我得到它,我的懶惰負載無法正常工作。
幫助,請...
鏈接到項目 - https://github.com/RanDahan/barker
然後向我們展示與dbcontext相關的配置 – Jorge
user.identity.name是否有值?這被稱爲?在行動方法或其他地方? – Brian
是的,用戶詳細信息起作用。如果我鍵入user.Friends.first()。用戶我可以看到我的細節只是朋友參數是NULL。 –