不能将类转换为与泛型接口

我试图通过对声明进行分组来扩展AspNet标识。我正在用一个新的QueryAppGroup实体来做这件事。我希望能够添加&删除任何特定组的声明。添加是不错，但我找不到任何删除特定的要求（例如，通过标识）的方式，使这里是我的计划：不能将类转换为与泛型接口

创建一个名为QueryAppGroupClaim的中介实体，以便IdentityUserClaim有一到零与它的一对一的关系。
通过删除任何特定的QueryAppGroupClaim实体，删除应级联到IdentityUserClaim。
要做到这一点，我需要IdentityUserClaim与导航属性回延伸到QueryAppGroupClaim（见ApplicationUserClaim）

代码：

public class ApplicationUserClaim : IdentityUserClaim<string> 
{ 
    [ForeignKey("QueryAppGroupClaim")] 
    public virtual int QueryAppGroupClaimId { get; set; } 
    public virtual QueryAppGroupClaim QueryAppGroupClaim { get; set; } 
} 

public class QueryAppGroup 
{ 
    public QueryAppGroup() 
    { 
    } 

    [DatabaseGenerated(DatabaseGeneratedOption.Identity)] 
    public int Id { get; set; } 

    [ForeignKey("ApplicationUser")] 
    public String UserId { get; set; } 

    public String Desc { get; set; } 

    public String ImpersonateClaimType { get; set; } 

    public virtual ApplicationUser ApplicationUser { get; set; } 
} 

public class QueryAppGroupClaim 
{ 
    public QueryAppGroupClaim() 
    { } 

    [Key, ForeignKey("IdentityUserClaim")] 
    public int ClaimId { get; set; } 
    public virtual ApplicationUserClaim IdentityUserClaim { get; set; } 

    [ForeignKey("QueryAppGroup")] 
    public int QueryAppGroupId { get; set; } 
    public virtual QueryAppGroup QueryAppGroup { get; set; } 
} 


public class ApplicationUser : IdentityUser<string, IdentityUserLogin, IdentityUserRole, ApplicationUserClaim>, IUser, IUser<string> 
{ 
    //... 
} 

public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityRole, string, IdentityUserLogin, IdentityUserRole, ApplicationUserClaim> 
{ 
    //... 
    public DbSet<QueryAppGroup> QueryAppGroups { get; set; } 

    public DbSet<QueryAppGroupClaim> QueryAppGroupClaims { get; set; } 

    protected override void OnModelCreating(DbModelBuilder modelBuilder) 
    { 
     base.OnModelCreating(modelBuilder); 
     modelBuilder.Entity<ApplicationUserClaim>() 
      .HasOptional(t => t.QueryAppGroupClaim) 
      .WithRequired(t => t.IdentityUserClaim) 
      .WillCascadeOnDelete(); 
    } 
} 

public class ApplicationUserStore : UserStore<ApplicationUser,IdentityRole,string, IdentityUserLogin, IdentityUserRole, ApplicationUserClaim> 
{ 
    //... 
    //Already exists with an override of RemoveClaimAsync(...) 
} 

public class ApplicationUserManager : UserManager<ApplicationUser> 
{ 
    public ApplicationUserManager(IUserStore<ApplicationUser> store) 
     : base(store) 
    { 
    } 

    public ApplicationUserManager(ApplicationUserStore store) 
     : base(store) 
    { 

    } 
    //... 
}

我得到一个编图误差public ApplicationUserManager(ApplicationUserStore store) : base(store)时调用基础构造函数说Argument 1: cannot convert from 'ApplicationUserStore' to 'Microsoft.AspNet.Identity.IUserStore<ApplicationUser>'。我的类ApplicationUserStore扩展了UserStore，它本身实现了许多接口，其中一个接口是IUserStore。我看不出如何解决这个问题。请帮忙。

任何关于简化主要目标的建议也将受到欢迎！

来源

2017-01-09 Scott Glover

嗨斯科特，并执行'IUserStore '的'ApplicationUserStore'解决这个问题？如果还有问题，我还有其他一些想法。 – Peter

是的，这工作，并允许我调整我的模型，所以我的应用程序按预期工作，谢谢！ –

尽量明确地实现与基类一起声明IUserStore<ApplicationUser>为UserStore，像这样：

public class ApplicationUserStore : 
    UserStore<ApplicationUser, IdentityRole, string, IdentityUserLogin, IdentityUserRole, ApplicationUserClaim>, 
    IUserStore<ApplicationUser> 
{ 
    public ApplicationUserStore(DbContext context) : base(context) 
    { 

    } 
}

来源

2017-01-10 00:38:35 Peter

不能将类转换为与泛型接口

回答

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