Error while using AspNet.Identity.EntityFramework (Owin/Katana): The ObjectContext instance has been disposed and can no longer be used for operations that require a connection

Question

User749309136 posted

Hi,

I followed all the articles in a series to develop a web api + owin-katana + identity application as described in:

http://johnatten.com/2015/02/15/asp-net-web-api-understanding-owinkatana-authenticationauthorization-part-iii-adding-identity/

Source code for this article at: https://github.com/TypecastException/MinimalOwinWebApiSelfHost/tree/auth-identity

I am using VS 2012. 

In file: ~/MinimalOwinWebApiSelfHost/MinimalOwinWebApiSelfHost/Models/ApplicationDbContext.cs

at line no. 67:   var result1 = await manager.CreateAsync(john, "JohnsPassword");

I keep having this error while seeding the database and I can’t find out why.

“The ObjectContext instance has been disposed and can no longer be used for operations that require a connection.”
Any ideas on why?
Thanks in advance.

Answer 1

User1120430333 posted

Maybe, you'll post to the below forum.

http://social.msdn.microsoft.com/Forums/en-US/home?forum=adodotnetentityframework

Answer 2

User1168443798 posted

Hi bharatmishra,

Could you share us detail steps to reproduce your issue with auth-identity project? I have downloaded it, and then run it, there is no any error.

How did you make ApplicationDbContext to run Seed method. I tried below code to fore Seed data, and there is still no exception.

        private void ConfigureAuth(IAppBuilder app)
        {
            // Create per OWIN Context:
            app.CreatePerOwinContext<ApplicationDbContext>(ApplicationDbContext.Create);
            var context = ApplicationDbContext.Create();
            context.Database.Initialize(true);
            app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);

Best Regards,

Edward