In "Seed()" method, when trying to use .FindbyName, thread exits.

Question

User-1134857695 posted

Hello to all! This problem tend to happen to me sporadically. I still do not know the cause of the issue.

Details:

ASP.NET 4.6 with MVC 5 + EF 6.1 + Identity 2.2.1

I have a simple seed method for inserting an Admin account to it. As following the guides from the Internet, I end up doing the following:

 var role = roleManager.FindByName(roleName);
                if (role == null)
                {
                    role = new  AppRole(roleName);
                    var roleresult = roleManager.Create(role);
                }

                var user = userManager.FindByName(UserName);
                if (user == null)
                {

                    //Omitted code for brevety. 
                    var result = userManager.Create(user, password);
                }
//Keep doing some stuff.

Simple, right? The code which I've omitted is for filling in the details.

The problem is the following: Most of the times, when I run the seed method and it hits the roleManager.FindByName(roleName) the thread in which it was running exits (with code 0 (0x0)). The same goes on with userManager.FindByName. But, if I don't use those methods, everything goes smoothly.

I have checked for values in the roleManager and it is not null (it would have shouted an object not reference...)

Not that is killing me, because I only use the Seed method once... But it intrigues me to what it could be causing it.

Thanks a lot!

Answer 1

User-1134857695 posted

Hmmm. Interesting. Evaluation times out when I try to put "roleManager.FindByName(roleName)" into a Watch window. Could it be database connection problems?

Answer 2

User-1134857695 posted

Woot! It worked again! I don't know... Really... what is it. I am using Windows 10 RTM 10586.101. Insider Preview was giving me some issues when running it.

Answer 3

User-1134857695 posted

Sigh* Keeps happening. Does anyone know a solution to this.

Update: (April 29th, 2016)

Sorry for not replying. I can't reply anymore since the thread is locked. I wanted to thank you. Your code is working, and I now know why. I used to grab the UserManager from the OwinContext, which was non-existent at that time. Forcing to create a new UserManager and RoleManager allowed me to access it directly without problems. 

One year later the problem was fixed! Thanks a bunch!

Answer 4

User-271186128 posted

Hi superjose,

The problem is the following: Most of the times, when I run the seed method and it hits the roleManager.FindByName(roleName) the thread in which it was running exits (with code 0 (0x0)). The same goes on with userManager.FindByName. But, if I don't use those methods, everything goes smoothly.

From your description, I suggest you could set a breakpoint to debug your code, and check whether the roleName and username is null.

Besides, since you are using Asp.net Identity, I suggest you could refer to the following code to add user and role.

               var UserManager = new UserManager<MyUser>(new UserStore<MyUser>(context)); 
               var RoleManager = new RoleManager<IdentityRole>(new RoleStore<IdentityRole>(context));
     
                 string name = "Admin";
                 string password = "123456";
 
     
                //Create Role Admin if it does not exist
                if (!RoleManager.RoleExists(name))
                {
                    var roleresult = RoleManager.Create(new IdentityRole(name));
                }
     
                //Create User=Admin with password=123456
                var user = new MyUser();
                user.UserName = name;
                var adminresult = UserManager.Create(user, password);
     
                //Add User Admin to Role Admin
                if (adminresult.Succeeded)
                {
                    var result = UserManager.AddToRole(user.Id, name);
                }

More details, please refer to this article: https://blogs.msdn.microsoft.com/webdev/2013/10/20/building-a-simple-todo-application-with-asp-net-identity-and-associating-users-with-todoes/

Best regards,
Dillion