编辑 ASP.NET Core Identity 中的用户

编辑用户的 ViewModel：

public class EditUserViewModel
{
    //public EditUserViewModel()
    //{
    //    Claims = new List<string>();
    //    Roles = new List<string>();
    //}
    public string Id { get; set; }
    [Required]
    public string UserName { get; set; }
    [EmailAddress]
    public string Email { get; set; }
    public IList<string> Roles { get; set; }
    public List<string> Claims { get; set; }
    public string City { get; set; }
}

编辑用户的两个方法：

[HttpGet]
public async Task<IActionResult> EditUser(string id)
{
    var user = await _userManager.FindByIdAsync(id);
    if (user == null)
    {
        ViewBag.ErrorMessage = $"无法找到 ID {id} 的用户";
        return View("NotFound");
    }
    var userClaims = await _userManager.GetClaimsAsync(user);
    var userRoles = await _userManager.GetRolesAsync(user);
    var model = new EditUserViewModel
    {
        Id = user.Id,
        Email = user.Email,
        UserName = user.UserName,
        City = user.City,
        Claims = userClaims.Select(c => c.Value).ToList(),
        Roles = userRoles
    };
    return View(model);
}
[HttpPost]
public async Task<IActionResult> EditUser(EditUserViewModel model)
{
    if (ModelState.IsValid)
    {
        var user = await _userManager.FindByIdAsync(model.Id);
        if (user == null)
        {
            ViewBag.ErrorMessage = $"无法找到 ID {model.Id} 的用户";
            return View("NotFound");
        }
        user.Email = model.Email;
        user.UserName = model.UserName;
        user.City = model.City;
        var result = await _userManager.UpdateAsync(user);
        if (result.Succeeded)
        {
            return RedirectToAction("ListUsers");
        }
        foreach (var item in result.Errors)
        {
            ModelState.AddModelError("", item.Description);
        }
    }
    return View(model);
}

编辑用户的视图：

@model EditUserViewModel
@{
    ViewBag.Title = "管理-编辑用户";
}
<h1>编辑用户</h1>
<form method="post" asp-action="EditUser">
    <div class="form-group row">
        <label asp-for="Id" class="col-sm-2 col-form-label "></label>
        <div class="col-sm-10">
            <input asp-for="Id" class=" form-control" disabled />
        </div>
    </div>
    <div class="form-group row">
        <label asp-for="Email" class="col-sm-2 col-form-label "></label>
        <div class="col-sm-10">
            <input asp-for="Email" class=" form-control" placeholder="请输入邮箱名称" />
            <span asp-validation-for="Email" class="text-danger"></span>
        </div>
    </div>
    <div class="form-group row">
        <label asp-for="UserName" class="col-sm-2 col-form-label"></label>
        <div class="col-sm-10">
            <input asp-for="UserName" class="form-control">
            <span asp-validation-for="UserName" class="text-danger"></span>
        </div>
    </div>
    <div class="form-group row">
        <label asp-for="City" class="col-sm-2 col-form-label"></label>
        <div class="col-sm-10">
            <input asp-for="City" class="form-control">
        </div>
    </div>
    <div asp-validation-summary="All" class="text-danger"></div>
    <div class="form-group row">
        <div class="col-sm-10">
            <button type="submit" class="btn btn-primary">更新</button>
            <a class="btn btn-primary" asp-action="ListUsers">取消</a>
        </div>
    </div>
    <div class=" card">
        <div class="card-header">
            <h3>用户角色</h3>
        </div>
        <div class="card-body">
            @if (Model.Roles.Any())
            {
                foreach (var role in Model.Roles)
                {
                    <h5 class="card-title">@role</h5>
                }
            }
            else
            {
                <h5 class="card-title">目前没有信息</h5>
            }
        </div>
        <div class="card-footer">
            <a href="#" class="btn btn-primary" style="width: auto">管理角色</a>
        </div>
    </div>
    <div class="card mt-3">
        <div class="card-header">
            <h3>用户声明</h3>
        </div>
        <div class="card-body">
            @if (Model.Claims.Any())
            {
                foreach (var claim in Model.Claims)
                {
                    <h5 class="card-title">@claim</h5>
                }
            }
            else
            {
                <h5 class="card-title">目前没有信息</h5>
            }
        </div>
        <div class="card-footer">
            <a href="#" class="btn btn-primary" style="width: auto">管理声明</a>
        </div>
    </div>
</form>

效果：