CODEWITHSUNDEEP
asp.netentity-frameworkasp.net-coreasp.net-identity
user1044169
user1044169

Reputation: 2866

UserManager - Access to Disposed Object

Using ASP.NET Core 2.

I am trying to init some application-wide data. For that I created a new class called DbInitializer, an interface called IDbInitializer, and registered them with AddScoped in Startup.ConfigureServices.

Then from Startup.Configure, I call DbInitializer.Initialize() and inside that method there are a few calls to UserManager:

if (appDbContext.Roles.All(i => i.Name != adminGroupName))
{
    await roleManager.CreateAsync(new IdentityRole(adminGroupName));
};
var role = appDbContext.Roles.First(i => i.Name == adminGroupName);

if (appDbContext.Users.All(i => i.UserName != adminSettings.Username))
{
    await userManager.CreateAsync(new ApplicationUser { UserName = adminSettings.Username,
                                                        Email = adminSettings.Username,
                                                        FirstName = adminSettings.FirstName,
                                                        LastName = adminSettings.LastName,
                                                        EmailConfirmed = true }, adminSettings.Password);
}
var adminUser = appDbContext.Users.First(i => i.UserName == adminSettings.Username);

if (!appDbContext.UserRoles.Any(i => i.RoleId == role.Id && i.UserId == adminUser.Id))
{
    await userManager.AddToRoleAsync(adminUser, role.Name);
}

The problem is that I am getting, at random the exception

Cannot access a disposed object

from userManager.CreateAsync or userManager.AddToRoleAsync.

Upvotes: 2

Views: 3178

Answers (1)

Zout
Zout

Reputation: 924

I believe the problem is that your DbInitializer.Initialize() method call (which should be marked async and return a Task) is not properly being awaited, since the Startup.Configure method must return void. It should work if you change your call to be DbInitializer.Initialize().Wait() which will wait for the task to complete.

Upvotes: 6

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