Creating a Class Library for a Northwind Database Context

Learn about defining a database context class library in EF Core, including creating a new project, adding references, configuring database context, and adjusting the mode.

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Defining a database context class library

We will now define a database context class library:

Step 1: Add a new project to the solution or workspace, as defined in the following list:

  • Project template: Class Library or classlib

  • Project file and folder: Northwind.Common.DataContext.Sqlite

  • Workspace or solution file and folder: PracticalApps

Step 2: In Visual Studio, set the startup project for the solution to the current selection. In Visual Studio Code, select Northwind.Common.DataContext.Sqlite as the active OmniSharp project.

Step 3: In the Northwind.Common.DataContext.Sqlite project, add a project reference to the Northwind.Common.EntityModels.Sqlite project and add a package reference to the EF Core data provider for SQLite, as shown in the following markup:

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