Solving “The ObjectContext instance has been disposed and can no longer be used for operations that require a connection” InvalidOperationException

Question

I am trying to populate a GridView using Entity Frameworkm but every time I am getting the following error:

\"Property accessor \'LoanPro

Answer 1

If you're using ASP.NET Core and wonder why you get this message in one of your async controller methods, make sure you return a Task rather than void - ASP.NET Core disposes injected contexts.

(I'm posting this answer as this question is high in the search results to that exception message and it's a subtle issue - maybe it's useful to people who Google for it.)