我已经修改了Views / Manage / Index.cshtml以显示用户的电子邮件.我还修改了IndexViewModel,以便它可以识别“ Email”字符串,然后制作另一个.cshtml页面,类似于更改默认的电话号码.新页面称为ChangeEmail.cshtml

@using (Html.BeginForm("ChangeEmail", "Manage", FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
{
    @Html.AntiForgeryToken()
    <h4>Add an email</h4>
    <hr />
    @Html.ValidationSummary("", new { @class = "text-danger" })
    <div class="form-group">
        @Html.LabelFor(model => model.Email, new { @class = "col-md-2 control-label" })
        <div class="col-md-10">
            @Html.TextBoxFor(model => model.Email, new { @class = "form-control" })

        </div>
    </div>
    <div class="form-group">
        <div class="col-md-offset-2 col-md-10">
            <input type="submit" class="btn btn-default" value="Submit" />
        </div>
    </div>
}

从我所看到的,更改密码是通过UserManager.cs中的一个名为“ ChangePasswordAsync”的任务完成的
有没有不用做新任务就可以更改电子邮件的方法吗？

编辑：从controller(index)添加了更多内容：

    public async Task<ActionResult> Index(ManageMessageId? message)
            {
                ViewBag.StatusMessage =
                    message == ManageMessageId.ChangePasswordSuccess ? "Your password has been changed."
                    : message == ManageMessageId.SetPasswordSuccess ? "Your password has been set."
                    : message == ManageMessageId.SetTwoFactorSuccess ? "Your two-factor authentication provider has been set."
                    : message == ManageMessageId.Error ? "An error has occurred."
                    : message == ManageMessageId.AddPhoneSuccess ? "Your phone number was added."
                    : message == ManageMessageId.RemovePhoneSuccess ? "Your phone number was removed."
                    : message == ManageMessageId.EmailChangedSuccess ? "Your email has been changed"
                    : "";

                var userId = User.Identity.GetUserId();
                var userEmail = User.Identity.Name;
                var user = UserManager.FindById(userId);



                var model = new IndexViewModel
                {
                    HasPassword = HasPassword(),
                    PhoneNumber = await UserManager.GetPhoneNumberAsync(userId),
                    TwoFactor = await UserManager.GetTwoFactorEnabledAsync(userId),
                    Logins = await UserManager.GetLoginsAsync(userId),
                    BrowserRemembered = await AuthenticationManager.TwoFactorBrowserRememberedAsync(userId),
                    Email = user.Email,
                    City = user.City,
                    Region = user.Region


                };
                user.Email = "topkek@ucn.dk";
                UserManager.UpdateAsync(user);

                return View(model);
            }

 [HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> ChangeEmail(ChangeEmailViewModel model)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }



            return RedirectToAction("Index", new { Message = ManageMessageId.EmailChangedSuccess });
        }

解决方法:

从您的ChangeEmailViewModel获取用户的电子邮件地址,然后使用userManager.UpdateAsync(user)更新用户的详细信息

编辑

[HttpPost]
        [ValidateAntiForgeryToken]
        public async Task<ActionResult> ChangeEmail(ChangeEmailViewModel model)
        {
            if (!ModelState.IsValid)
            {
                return View(model);
            }
             //Get the user's Id
            var userId = User.Identity.GetUserId(); 

            //get the user (you can modify the variables to fit yours) 
           var user = UserManager.FindByIdAsync(userId);

          //this is how to change the Email
          user.Result.Email= model.Email// **EDIT**;

         userManager.UpdateAync(user.Result);

            return RedirectToAction("Index", new { Message = ManageMessageId.EmailChangedSuccess });
        }