ASP.NET MVC Cannot find user

Question

I have setup an MVC website with Forms Authentication.

Basically, here is the code that has error which says that there is no such user '2010108703' but still, it is logged on (we can see there is a value at User.Identity.Name)

 string user = User.Identity.Name;
            Roles.AddUserToRole(user, "student");
            return View();

Here is my web.config

 <roleManager enabled ="true" defaultProvider="DefaultRoleProvider">
      <providers>
        <add name="DefaultRoleProvider" type="System.Web.Providers.DefaultRoleProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" applicationName="/" />
      </providers>
</roleManager>

so as you can see, we have a value for the current user which is "2010108703"

enter image description here

but when we are trying to add the role, it says, no such user exist.

enter image description here

Is it a bug? why is that so?

Thanks

did you try clearing the cookie of your browser?

SoftSan
– SoftSan

2014-06-25 04:24:19 +00:00
Commented Jun 25, 2014 at 4:24 — SoftSan
– SoftSan, Commented Jun 25, 2014 at 4:24
yes softsan i did tried nothing changed

vvavepacket
– vvavepacket

2014-06-25 04:30:26 +00:00
Commented Jun 25, 2014 at 4:30 — vvavepacket
– vvavepacket, Commented Jun 25, 2014 at 4:30

Erik Funkenbusch · Accepted Answer · 2014-06-25 04:28:57Z

1

FormsAuthentication is a separate system from Membership/Roles. You can put anything you want in the cookie and have the user be logged in, that doesn't mean they exist in your database.

You need to check your login code to make sure that it's actually validating the user against the membership database, and that both membership and roles are using the same connection string.

answered Jun 25, 2014 at 4:28

Erik Funkenbusch

93.7k29 gold badges201 silver badges292 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Win · Accepted Answer · 2014-06-25 05:14:38Z

0

I'm just taking a wild guess.

Since your creating a new ASP.Net MVC, most likely it comes with ASP.Net Identity instead of legacy ASP.Net Membership Provider. FYI: Look at the database tables.

If so, User.Identity IPrincipal object is still available in ASP.Net Identity.

However, Roles object is not available anymore. Instead, you need to call UserManager object.

For example,

var roleResult = await UserManager.AddUserToRolesAsync(user, new []{"student"});

answered Jun 25, 2014 at 5:14

Win

62.4k13 gold badges106 silver badges190 bronze badges

Collectives™ on Stack Overflow

ASP.NET MVC Cannot find user

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related