To work with EF, we need a class that inherits from the DbContext class and the DbSet object as the DbContext class properties.
Before EF, we had several approaches to working with EF:
- The empty code first model (from C# classes used to generate a new database)
- Code first from an existing database (generating EF entities' classes and the DbContext class, but the goal was to keep on using EF with the code first model features)
- The empty EF designer model (in an .edmx model file via a graphic interface, we created object-oriented entities that generated a new database (schema, tables, relations, constraints) and the associated C# code.
- The EF designer from the database (this generated an .edmx file model from ...
