Question

我正在尝试学习新的asp.net身份2.0的工作方式，但是由于文档很少，我会遇到很多绊脚石。

我在下面的代码基于我读过的几个教程：

public class CustomRole : IdentityRole<string, CustomUserRole>
{
    public CustomRole() { }
    public CustomRole(string name) { Name = name; }
}

public class CustomUserRole : IdentityUserRole<string> { }
public class CustomUserClaim : IdentityUserClaim<string> { }
public class CustomUserLogin : IdentityUserLogin<string> { }

// define the application user
public class ApplicationUser : IdentityUser<string, CustomUserLogin, CustomUserRole, 
    CustomUserClaim>
{
    [Required]
    public bool IsActive { get; set; }

    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
        return userIdentity;


    }
}

public partial class myDbContext : IdentityDbContext<ApplicationUser, CustomRole, string, 
    CustomUserLogin, CustomUserRole, CustomUserClaim>
{
    static myDbContext()
    {
        Database.SetInitializer<myDbContext>(null);
    }

    public myDbContext()
        : base("Name=myDbContext")
    {
    }

    public DbSet<TestTable> TestTables { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Configurations.Add(new TestTableMap());
    }
}

然后我有了这段代码：

// create the user manager
        UserManager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser, CustomRole, string, CustomUserLogin, CustomUserRole,
    CustomUserClaim>(
            new myDbContext()));

我在此语句中收到错误，说明参数类型为 UserStore＆lt; -ApplicationUser，CustomRole，string，CustomUserLogin，CustomUserRole， CustomUserClaim-＆gt; 不能分配给参数类型 IUserStore＆lt; -ApplicationUser-＆gt;

我在这里缺少什么？

Answer 1

试试这个：

UserManager = new UserManager<ApplicationUser,string>(new UserStore<ApplicationUser, CustomRole, string, CustomUserLogin, CustomUserRole, CustomUserClaim>(new myDbContext()));

注意我对UserManager使用了不同的结构，我添加了string作为您在ApplicationUser主键的代码中使用的第二种类型

由于您按照自己的方式实现了自定义用户/角色等，因此您需要在代码中使用UserManager作为UserManager<ApplicationUser,string>，以便将用户PK的类型作为字符串传递。< / p>

Answer 2

这对我有用。如果您创建自定义用户和角色，似乎您必须创建自己的usermanager和userstore。这是派生UM（您可以创建与角色管理器相同的方式）：

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

        }


    }
public class ApplicationUserStore : UserStore<ApplicationUser, CustomRole, string, CustomUserLogin, CustomUserRole, CustomUserClaim>
    {
        public ApplicationUserStore(ApplicationDbContext context)
            : base(context)
        {
        }
    }

然后创建UserManager：

ApplicationUserManager um = new ApplicationUserManager(new ApplicationUserStore(new ApplicationDbContext()));

我如何创建UserManager的实例

2 个答案: