How to dispose dbcontext in container?

Question

I create entity framework db context in startup

 services.AddTransient<MyContext>(_ => new MyContext(connectionString));

I inject this context in every service class where I need entity framework to add/edit/delete or what ever.

private readonly MyContext context;

public ArchiveService(MyContext context)
{
    this.context = context;
}

For IoC i am using Microsoft.Extensions.DependencyInjection. This mean that my dependency injection container is responsible to dispose db context.

How can I be sure that context is disposed?

Do I need to configure something to dispose db context?

Thank you for help.

see this: [lifespan/scope of context in a winform application](http://stackoverflow.com/questions/5663754/entity-framework-4-lifespan-scope-of-context-in-a-winform-application) — Vikrant, Nov 15 '16 at 09:25

score 5 · Accepted Answer · answered Nov 15 '16 at 09:47

In asp.net core, all services which you registered with AddTransient are disposed together with a scope, so - when request ends. What's the difference between Transient and Scoped then you might ask? For Transient - new instance is created for every resolution. In your case - all your service classes will have distinct instances of MyContext. All of them will be disposed when request ends. For Scoped - only one instance will be created for given request (scope), so all your services would have shared the same instance, which is disposed when request ends.

How to dispose dbcontext in container?

1 Answers1