在MVC 5添加用户角色注册后 [英] Adding a role for user after registration in MVC 5

问题描述

我要新注册的用户添加到我的应用程序的通用用户的角色。我使用ASP.NET身份。下面我的code返回一个神秘的错误 - 异常详细信息：System.Configuration.Provider.ProviderException：角色''没有被发现。

我需要在我的帐户控制器（角色管理器等）来实例化的东西吗？
在这里，我的code中的AccountController注册POST操作。

  // POST：/帐号/注册
    [HttpPost]
    [使用AllowAnonymous]
    [ValidateAntiForgeryToken]
    公共异步任务＆LT;＆的ActionResult GT;寄存器（RegisterViewModel模型）
    {
        如果（ModelState.IsValid）
        {
            VAR用户=新ApplicationUser（）{用户名= model.UserName};
            VAR的结果=等待UserManager.CreateAsync（用户，model.Password）;
            变种人=新的Person（）{
                用户名= user.UserName，
                用户ID = user.Id，
                姓氏= model.LastName，
                名字= model.FirstName，
                电子邮件= model.Email，
                PhoneCell = model.PhoneCell};
                Roles.AddUserToRole（model.UserName，用户）;
            如果（result.Succeeded）
            {
                等待SignInAsync（用户，isPersistent：假）;
                db.People.Add（人）;
                db.SaveChanges（）;
                返回RedirectToAction（指数，家）;
            }
            其他
            {
                AddErrors（结果）;
            }
        }        //如果我们走到这一步，事情失败了，重新显示形式
        返回查看（模型）;
    }
 

解决方案

您需要使用的UserManager 来的角色添加到用户。见下图：

  [HttpPost]
    [使用AllowAnonymous]
    [ValidateAntiForgeryToken]
    公共异步任务＆LT;＆的ActionResult GT;寄存器（RegisterViewModel模型）
    {
        使用（VAR上下文=新ApplicationDbContext（））
        {
            如果（ModelState.IsValid）
            {
                VAR用户=新ApplicationUser（）{用户名= model.UserName};
                VAR的结果=等待UserManager.CreateAsync（用户，model.Password）;                VAR Rolestore的=新Rolestore的＆LT; IdentityRole＆GT;（上下文）;
                VAR roleManager =新RoleManager＆LT; IdentityRole＆GT;（Rolestore的）;                VAR userStore =新UserStore＆LT; ApplicationUser＆GT;（上下文）;
                VAR的UserManager =新的UserManager＆LT; ApplicationUser＆GT;（userStore）;
                userManager.AddToRole（user.Id，用户）;                如果（result.Succeeded）
                {
                    等待SignInAsync（用户，isPersistent：假）;
                    返回RedirectToAction（指数，家）;
                }
                其他
                {
                    AddErrors（结果）;
                }
            }
            //如果我们走到这一步，事情失败了，重新显示形式
            返回查看（模型）;
        }
    }
 

I want to add newly registered user to a generic "User" role in my application. I am using ASP.NET Identity. My code below returns a cryptic error - Exception Details: System.Configuration.Provider.ProviderException: The role '' was not found.

Do I need to instantiate something in my account controller (role manager etc)? Here my code in the AccountController Register POST action.

    // POST: /Account/Register
    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> Register(RegisterViewModel model)
    {
        if (ModelState.IsValid)
        {
            var user = new ApplicationUser() { UserName = model.UserName };
            var result = await UserManager.CreateAsync(user, model.Password);
            var person = new Person() { 
                UserName = user.UserName, 
                UserId = user.Id, 
                LastName = model.LastName, 
                FirstName = model.FirstName, 
                Email = model.Email, 
                PhoneCell = model.PhoneCell };
                Roles.AddUserToRole(model.UserName, "User");
            if (result.Succeeded)
            {
                await SignInAsync(user, isPersistent: false);
                db.People.Add(person);
                db.SaveChanges();
                return RedirectToAction("Index", "Home");
            }
            else
            {
                AddErrors(result);
            }
        }

        // If we got this far, something failed, redisplay form
        return View(model);
    }

解决方案

You need to use UserManager to add role to the user. See below:

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> Register(RegisterViewModel model)
    {
        using (var context = new ApplicationDbContext())
        {
            if (ModelState.IsValid)
            {
                var user = new ApplicationUser() { UserName = model.UserName };
                var result = await UserManager.CreateAsync(user, model.Password);

                var roleStore = new RoleStore<IdentityRole>(context);
                var roleManager = new RoleManager<IdentityRole>(roleStore);

                var userStore = new UserStore<ApplicationUser>(context);
                var userManager = new UserManager<ApplicationUser>(userStore);
                userManager.AddToRole(user.Id, "User");

                if (result.Succeeded)
                {
                    await SignInAsync(user, isPersistent: false);
                    return RedirectToAction("Index", "Home");
                }
                else
                {
                    AddErrors(result);
                }
            }
            // If we got this far, something failed, redisplay form
            return View(model);                
        }
    }

这篇关于在MVC 5添加用户角色注册后的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！