#Scaffold dbcontext how to
#Scaffold dbcontext install
#Scaffold dbcontext code

#Scaffold dbcontext code

For the first database connectivity I have created a separate entity project using Entity Framework Core 5.0 Code first approach. So I want to connect to the second database is just as a read access to read master data and display it in application pages. I want to read some master data from this database to use in my application. but there is another database already designed and being used by another application. One database is application’s own database where all the information will be stored/added. My requirement is, my application is built on Asp.Net core 5 is displaying information from two different databases(both Sql). If you like this post, please share it with your friends or colleagues to spread the knowledge further.

#Scaffold dbcontext how to

I have also covered how to generate code with Fluent API or Data Annotations and finally, I gave you an example of extending the generated DbContext. In this tutorial, I have shown you how to generate model classes and DbContext from an existing database using Entity Framework commands and tools.

If you will run the project now, you will see the following page showing all the products from the database. Open the Package Manager Console of the project and copy/paste the following command and press = 'Home => => => (var item in => => => item.Price) Let’s try to use some of the parameters from the above table. The parameter is added in Entity Framework Core 5.0 and it specifies if we want to pluralize the DbSet classes e.g. The parameter is added in Entity Framework Core 5.0 and it specifies whether we want to generate DbContext.OnConfiguring method in our generated DbContext class or not. If this parameter is omitted, database names are changed to more closely conform to C# name style conventions. Use table and column names exactly as they appear in the database. If this parameter is omitted, the generated code will use fluent API to configure models. This parameter specifies whether we want to use Data Annotation attributes to configure the models. The example for generating code of specific tables is –Tables “Product, Customer” If this parameter is omitted, all tables are included. If this parameter is omitted, all schemas are included. The schemas of tables to generate entity types for. This parameter specifies the name of the DbContext class to generate.

This parameter overrides –Namespace which means you can have a different namespace for DbContext generated class than the generated models. The parameter is also added in Entity Framework Core 5.0 and it specifies the namespace to use for the generated DbContext class. By default, the root namespace and the output directory will be used. The parameter is added in Entity Framework Core 5.0 and it specifies the namespace to use for all generated classes. This path is also relative to the project directory. This parameter specifies the directory to put the DbContext file in. This path is relative to the project directory. This command specifies the directory to put the generated files in. This is a positional parameter and is required. We normally provide the name of the NuGet package, for example, can be used for the SQL Server database. This parameter specifies the database provider we want to use.

If you are using ASP.NET Core 2.x or higher version, then you can also give the value as name= in which case the name comes from the configuration sources that are set up for the project. This parameter specifies the connection string to the database. READ ALSO: Decorator Design Pattern in ASP.NET Core 5 Parameter In Entity Framework Core, we need to generate Model classes from an existing database using the following two options. Generating Models from an Existing Database using EF CoreĮntity Framework Core doesn’t support the visual designer (.edmx file) for creating models which we were using in the old version of Entity Framework (EF 6).

#Scaffold dbcontext install

We also need to install and Microsoft.EntityFramewo r kCore.Tools to perform some Entity Framework Core design-time development tasks such as generating the DbContext and Entity Models from an existing database. Getting Started with EF Core using Existing Databaseįor this tutorial, I will be using the following database that has the Customers, Products, Orders, and ProductOrders table with a standard parent-child relationship.Ĭreate a standard ASP.NET Core 5 MVC Web Application and install Entity Framework Core and SQL Server Data Provider by installing NuGet package.

Displaying Data in ASP.NET Core using EF Core.

Extending EF Core Generated DbContext Class.

Generating Models from an Existing Database using EF Core.

Getting Started with EF Core using Existing Database.