asp.net core - How to update the model when using database first approach

Question

I used EntityFramework Core database first to create model as illustrated in the EF Core documentation

But I don't know how to update the model when the database has been edit.

Answer 1

You can re-scaffold the model by running the command that you originally ran with the -Force option added. That will result in the contents of the specified folder being over-written. Using the Package Manager Console example from the EF Core docs, the revised command becomes:

Scaffold-DbContext "Server=(localdb)v11.0;Database=Blogging;Trusted_Connection=True;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models -Force

Alternatively, if you are using CLI commands, it becomes:

dotnet ef dbcontext scaffold "Server=(localdb)v11.0;Database=Blogging;Trusted_Connection=True;" Microsoft.EntityFrameworkCore.SqlServer -o Models -f

However, you should consider using Migrations to keep your model and database schema in sync with each other. That way you make changes to the model and then propagate them to the database.