c# - 在依赖类型 'FootballGame' 上找不到导航属性 'Bd.Domain.Entities.FootballGame'

Question

我正在创建我的第一个 asp.net mvc3 应用程序。我正在使用代码优先方法。我有以下模型:

public class FootballGame
{
    [Key]
    public Guid id_FootballGame { get; set; }

    [ForeignKey("FootballGame")]
    public Guid? FK_id_FootballGame { get; set; }
    public virtual FootballGame PreviousFootballGame { get; set; }

    [ForeignKey("FootballTeam")]
    public Guid id_FootballTeam_owner { get; set; }
    public virtual FootballTeam FootballTeamOwner { get; set; }

    [ForeignKey("FootballTeam")]
    public Guid id_FootballTeam_guest { get; set; }
    public virtual FootballTeam FootballTeamGuest { get; set; }
}

public class FootballTeam
{
    [Key]
    public Guid id_FootballTeam { get; set; }
    public string teamName { get; set; }
}

我有以下类(class):

public class EFDbContext : DbContext
{
    public EFDbContext() : base("name=EFDbContext") { }

    public DbSet<FootballTeam> FootballTeams { get; set; }
    public DbSet<FootballGame> FootballGames { get; set; }
}

不幸的是，有一个异常(exception):

The ForeignKeyAttribute on property 'FK_id_FootballGame' on type 'Bd.Domain.FootballGame' is not valid. The navigation property 'FootballGame' was not found on the dependent type 'Bd.Domain.FootballGame'. The Name value should be a valid navigation property name.

我试图删除这些行:

[ForeignKey("FootballGame")]
public virtual FootballGame PreviousFootballGame { get; set; }

然而，另一个异常(exception)出现了:

The ForeignKeyAttribute on property 'id_FootballTeam_owner' on type 'Bd.FootballGame' is not valid. The navigation property 'FootballTeam' was not found on the dependent type 'Bd.FootballGame'. The Name value should be a valid navigation property name.

我期待任何帮助。问候，丹尼斯。

Answer 1

试试这个:

public class FootballGame
{
    [Key]
    public Guid id_FootballGame { get; set; }

    public Guid? FK_id_FootballGame { get; set; }
    [ForeignKey("FK_id_FootballGame")]
    public virtual FootballGame PreviousFootballGame { get; set; }

    public Guid id_FootballTeam_owner { get; set; }
    [ForeignKey("id_FootballTeam_owner")]
    public virtual FootballTeam FootballTeamOwner { get; set; }

    public Guid id_FootballTeam_guest { get; set; }
    [ForeignKey("id_FootballTeam_guest")]
    public virtual FootballTeam FootballTeamGuest { get; set; }
}