1

This is a possible duplicate of these question below. However using the answers provided there I have still failed to fix the issue.

Question

My issue seems almost identical to this. I have a class library to store two .edmx files which is then references by two other class libraries. I want to test the database queries in a unit testing project but always receive the following error.

"The type initializer threw an exception...System.TypeInitializationException: No connection string named 'MyModel' could be found in the application config file" where 'MyModel' obviously refers to either of the two .edmx models.

Based on the previous answers to this topic I have copied the App.config file from my EntityFramework project to both class library projects and indeed the unit test project but still receive the error.

Any help would be appreciated. If it makes any difference I am using VS2012 and .Net 4.5.

Thanks Richard

Improve this question

1 Answer 1

Reset to default
2

Putting the app.config in a class library won't fix the problem, since the class libraries aren't the start-up application, they're just being referenced and therefore the app.config is never actually read from. When testing, you should pass the connection string directly to your DbContext when it's being constructed.

Improve this answer
Sign up to request clarification or add additional context in comments.

2 Comments

Hi Brian, to be honest I'm not sure exactly what you mean by passing the connection to DbContext. Please can you elaborate?
Perhaps it's different using a model-first approach, but don't you have to instantiate a DataContext in order to query the database?

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.