In this article, we will see how to auto-generate Dbcontext class for migration in asp.net core 3.1. Friends as we know, . net core 3.1 uses the code first approach for the Database connection. We can create simple tables from the code first approach using migration and can create explicit Dbcontext.
In this article, we will see how to auto-generate Dbcontext class for migration in asp.net core 3.1. Friends as we know, .net core 3.1 uses the code first approach for the Database connection. We can create simple tables from the code first approach using migration and can create explicit Dbcontext.cs for 1 or 2 tables, or a few tables. But when we have a complex database of the project having multiple foreign key relationships with multiple tables then it is much more difficult for creating a database using migration. So we want to generate our project database from a Database first approach and want to maintain it from migration easily. This problem can be solved by just a single command of Entity Framework Core tool.
Before applying migration in your project, make sure migration is already enabled, and all the packages have been installed in your project
Go to Nu Get Package Manager > install this package
Now, I have already created my complex database in SQL server with the name "db_Demo" , which has multiple tables with a foreign key relationship, so let's auto-generate its table model and a DbContext class.
Go to View Menu> Other Windows> Package Manager Console > Write this Commond
If any modification performs in the database then alter models by this command.
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