不能將類轉換爲與泛型接口

我試圖通過對聲明進行分組來擴展AspNet標識。我正在用一個新的QueryAppGroup實體來做這件事。我希望能夠添加&刪除任何特定組的聲明。添加是不錯，但我找不到任何刪除特定的要求（例如，通過標識）的方式，使這裏是我的計劃：不能將類轉換爲與泛型接口

創建一個名爲QueryAppGroupClaim的中介實體，以便IdentityUserClaim有一到零與它的一對一的關係。
通過刪除任何特定的QueryAppGroupClaim實體，刪除應級聯到IdentityUserClaim。
要做到這一點，我需要IdentityUserClaim與導航屬性回延伸到QueryAppGroupClaim（見ApplicationUserClaim）

代碼：

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) 
    { 

    } 
    //... 
}

我得到一個編圖誤差public ApplicationUserManager(ApplicationUserStore store) : base(store)時調用基礎構造函數說Argument 1: cannot convert from 'ApplicationUserStore' to 'Microsoft.AspNet.Identity.IUserStore<ApplicationUser>'。我的類ApplicationUserStore擴展了UserStore，它本身實現了許多接口，其中一個接口是IUserStore。我看不出如何解決這個問題。請幫忙。

任何關於簡化主要目標的建議也將受到歡迎！

來源

2017-01-09 Scott Glover

嗨斯科特，並執行'IUserStore '的'ApplicationUserStore'解決這個問題？如果還有問題，我還有其他一些想法。 – Peter

是的，這工作，並允許我調整我的模型，所以我的應用程序按預期工作，謝謝！ –

儘量明確地實現與基類一起聲明IUserStore<ApplicationUser>爲UserStore，像這樣：

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

    } 
}

來源

2017-01-10 00:38:35 Peter

不能將類轉換爲與泛型接口

回答

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