Entity framework 5 download

NET Framework 3. Entity Framework has come a long way since its original inception. To get started, I recommend folks install the latest version of the. Technically, EF Core 5 can run on. NET Core 3. Starting with a brand new console application, we will need to install the following packages, making sure that all the versions are 5.

Additionally, we will want to install the dotnet-ef command-line tool CLI. When we finish setting up our project, we can run the dotnet-ef command, where the EF unicorn will greet us. Folks who want to follow along can clone a sample project from GitHub. What is DbContext? The DbContext is a specialized base class that tracks our in-memory operations, allowing us to write and execute queries, track changes that we can persist back to our database, and interact with our database engine indirectly or directly in exceptional circumstances.

To get started using EF Core 5, we need to define a class that derives from DbContext and contains our models. Typically, our classes will map one to one with our database tables, and relationships between tables are defined using navigational conventions.

A Production has characters and ratings. An Actor will always portray a Character. I hope as folks read these sentences, they start to formulate the relationships in their mind.

We had mentioned that both a Movie and a Series could be a Production. EF Core 5 applies an approach known as Table-per-hierarchy TPH , where we store hierarchically related entities in a single table.

The Discriminator column is invisible to developers from C , but we can see it in the database schema generated by EF Core 5. We have a many to many relationship between our Production and the Actors. We express this relationship through the Character entity. We also have a one to many relationship, where a Production can have many instances of a Rating.

Looking over our models, we can see some conventional patterns emerge. There are often prerelease versions of Entity Framework available that we would love you to try out and give us feedback on. If no prerelease versions are available you will automatically get the latest fully supported version of Entity Framework. Alternatively, you can run the following command in the Package Manager Console. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.

NET Core. A convention-based object-object mapper in. NET 6. Version Downloads Last updated 6. LinqKit LinqKit. Docs Documentation for ASP. NETStandard 2. NuGet packages 2. EntityFramework ASP. Core ASP. Documentation for ASP. NET Core.