如何从UserProfile获取自定义信息?

时间:2014-10-12 18:46:47

标签: c# security asp.net-mvc-4 asp.net-membership nullreferenceexception

我将 UserProfile 自定义字段 UserType 添加为字符串。我想更改login post method to get the value from UserType并在TempData中传递此值。

这是我在AccountController上的代码:

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
        public ActionResult Login(LoginModel model, string returnUrl)
    {
        if (ModelState.IsValid && WebSecurity.Login(model.UserName, model.Password, persistCookie: model.RememberMe))
        {
            var context = new UsersContext();
            var currentUser = Membership.GetUser(User.Identity.Name);
            string username = currentUser.UserName;
            var user = context.UserProfiles.SingleOrDefault(u => u.UserName == username);
            var userType = user.UserType;

            TempData["UserType"] = user.UserName; //Taking UserType from User Profile to validate in _Layout
            return RedirectToLocal(returnUrl);
        }

        // If we got this far, something failed, redisplay form
        ModelState.AddModelError("", "The user name or password provided is incorrect.");
        return View(model); 
    }

我对这个方法进行调试,这是我的信息:

> **On WebSecurity.Login()** I can see the UserName and Password.
> **Var CurrentUser**  I can't get the value from User.Identity.Name
> **string Username** This error is displayed *Object reference not set to an instance of an object*. Application crash.

有人为此有一些解决方案吗? 我是ASP.NET的新手,但也许如果我实现自定义成员资格它会起作用,您怎么看?你能给我一些例子吗?谢谢你们。

此处的解决方案:

`[HttpPost]     [使用AllowAnonymous]     [ValidateAntiForgeryToken]         public ActionResult Login(LoginModel model,string returnUrl)     {         if(ModelState.IsValid&&& WebSecurity.Login(model.UserName,model.Password,persistCookie:model.RememberMe))         {             var context = new UsersContext();             var user = context.UserProfiles.Where(u => u.UserName == model.UserName);             var userType = user.Select(m => m.UserType);

        TempData["UserType"] = user.UserName; //Taking UserType from User Profile to validate in _Layout
        return RedirectToLocal(returnUrl);
    }

    // If we got this far, something failed, redisplay form
    ModelState.AddModelError("", "The user name or password provided is incorrect.");
    return View(model); 
}`

1 个答案:

答案 0 :(得分:0)

只是一个想法,万一我不能评论bcoz我的声誉, 为什么不直接使用model.UserName而不是var currentUser = Membership.GetUser(User.Identity.Name);

这背后的原因是任何登录的人都将是当前的用户,您可以从数据库中检索其详细信息。

更新了

您可以使用

UserProfile User = udb.UserProfiles.Where(m => m.UserName == model.UserName).FirstOrDefault();
var userType=User.UserType; // this brings your UserType from database

// then you can use this as
TempData["UserType"]=userType;

希望这有助于你!