ASP.Net Core Identity - 管理其他用户

Posted 2023-02-25

【中文标题】ASP.Net Core Identity - 管理其他用户

【英文标题】：ASP.Net Core Identity - Manage other users

【发布时间】：2021-01-10 13:07:14

【问题描述】：

我自定义了默认用户身份并创建了多个用户。 假设我是管理员并且我想管理其他用户信息（更改属性值）。 如果我有他们的 ID，我如何访问其他用户的数据。

我可以检索表中的所有用户并在“asp-route-id”中获取他们的 ID

    @foreach (var item in Model.ApplicationUser)
    
        <tr>
            <td>
                @html.DisplayFor(modelItem => item.FirstName)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.LastName)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Id)
            </td>
            <td>
                <a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage" asp-route-id="@item.Id">Edit</a>

我在使用 userManager 检索\更新其他用户信息时卡住了 在 Get 和 Post 方法中。

【参考方案1】：

我设法使用 lambda 表达式解决了它

var UsertoEdit = _userManager.Users.FirstOrDefault(u => u.Id == ID);

ID应该通过asp-route获取

我已发布以下代码供参考：

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using WebApplication2.Models;

namespace WebApplication2.Areas.Identity.Pages.Account.Manage


    public partial class IndexModel : PageModel
    
        private readonly UserManager<ApplicationUser> _userManager;
        //private readonly SignInManager<ApplicationUser> _signInManager;

        public IndexModel(
            UserManager<ApplicationUser> userManager)

        
            _userManager = userManager;

        



        [BindProperty]
        public InputModel Input  get; set; 



        public class InputModel
        

            public string FirstName  get; set; 
            public string LastName  get; set; 
            public string Username  get; set; 


        

        private async Task LoadAsync(string ID)
        


            var UsertoEdit = _userManager.Users.FirstOrDefault(u => u.Id == ID);



            Input = new InputModel
            
                FirstName = UsertoEdit.FirstName,
                LastName = UsertoEdit.LastName,
                Username = UsertoEdit.UserName
            ;
        

        public async Task<IActionResult> OnGetAsync(string ID)
        
            var UsertoEdit = _userManager.Users.FirstOrDefault(u => u.Id == ID);

            if (UsertoEdit == null)
            
                return NotFound($"Unable to load user with ID '_userManager.GetUserId(User)'.");
            



            await LoadAsync(ID);
            return Page();

        

        public async Task<IActionResult> OnPostAsync(string ID)
        

            var UsertoEdit = _userManager.Users.FirstOrDefault(u => u.Id == ID);

            if (UsertoEdit == null)
            
                return NotFound($"Unable to load user with ID '_userManager.GetUserId(User)'.");
            

            if (!ModelState.IsValid)
            

                await LoadAsync(UsertoEdit.UserName);
                return Page();
            
            if (Input.FirstName != UsertoEdit.FirstName)
            
                UsertoEdit.FirstName = Input.FirstName;
            

            if (Input.LastName != UsertoEdit.LastName)
            
                UsertoEdit.LastName = Input.LastName;
            
            await _userManager.UpdateAsync(UsertoEdit);

            return RedirectToPage("/Users");