c# - ASP.NET 标识 : get all users in a role

Question

如何获取角色中所有用户的列表？之前使用 Roles.GetUsersInRole 是可能的，但是使用新身份我找不到这样的东西。

Answer 1

我没有看到内置的方法，但它很容易实现。我在特定于应用程序的 UserManager 中有此方法:

public IQueryable<User> GetUsersInRole(string roleName)
{
    return from user in Users
           where user.Roles.Any(r => r.Role.Name == roleName)
           select user;
}

它输出的SQL看起来很合理:

SELECT 
[Extent1].[Id] AS [Id], 
[Extent1].[Email] AS [Email], 
[Extent1].[EmailConfirmed] AS [EmailConfirmed], 
[Extent1].[PasswordHash] AS [PasswordHash], 
[Extent1].[SecurityStamp] AS [SecurityStamp], 
[Extent1].[PhoneNumber] AS [PhoneNumber], 
[Extent1].[PhoneNumberConfirmed] AS [PhoneNumberConfirmed], 
[Extent1].[TwoFactorEnabled] AS [TwoFactorEnabled], 
[Extent1].[LockoutEndDateUtc] AS [LockoutEndDateUtc], 
[Extent1].[LockoutEnabled] AS [LockoutEnabled], 
[Extent1].[AccessFailedCount] AS [AccessFailedCount], 
[Extent1].[UserName] AS [UserName]
FROM [dbo].[AspNetUsers] AS [Extent1]
WHERE  EXISTS (SELECT 
    1 AS [C1]
    FROM  [dbo].[AspNetUserRoles] AS [Extent2]
    INNER JOIN [dbo].[AspNetRoles] AS [Extent3] ON [Extent2].[RoleId] = [Extent3].[Id]
    WHERE ([Extent1].[Id] = [Extent2].[UserId]) AND ([Extent3].[Name] = @p__linq__0)
)