How do I use Entity Framework repository?

How do I use Entity Framework repository?

Today, I am going to explain how to use repository pattern in ASP.NET MVC with EntityFramework.

1. Start Visual Studio 2013 or 2012.
2. Create a EmployeeContext.
3. Add a EmployeeController which directly interact with Repository.
4. Create View for the Controller action method like Index, EditEmployee, DeleteEmployee, etc.

What is a repository in Entity Framework?

The repository and unit of work patterns are intended to create an abstraction layer between the data access layer and the business logic layer of an application. When the controller runs under a web server, it receives a repository that works with the Entity Framework.

What is Entity Framework for?

The Entity Framework enables developers to work with data in the form of domain-specific objects and properties, such as customers and customer addresses, without having to concern themselves with the underlying database tables and columns where this data is stored.

What are the components of Entity Framework?

Let’s look at the components of the architecture individually. EDM (Entity Data Model): EDM consists of three main parts – Conceptual model, Mapping and Storage model. Conceptual Model: The conceptual model contains the model classes and their relationships.

How to create a repository using Entity Framework?

The second one is called code-first approach. This is the approach that we will for building our Repository. There are two important classes that we need to know – DbContext and DbSet. DbContext is one important class for Entity Framework. When using Entity Framework we need to have one class that derives this class in our system.

How is the Entity Framework used in C #?

Two primary implementations of the Entity Framework Repository and UnitOfWork pattern provide a design for persisting entities within individual blocks of context or via a global context per web request. The Repository and UnitOfWork pattern provide a solid architecture to help take C# ASP .NET web applications into the future. About the Author

Which is the latest version of Entity Framework?

The latest version of the Entity Framework EF4 provides several new features, which support implementing a loosely-coupled repository pattern design.

How is UnitOfWork used in the Entity Framework?

The UnitOfWork pattern allows us to execute a single database transaction (implicitly as part of the Entity Framework), which spans across multiple blocks of code, methods, classes, and repositories. There are two primary ways to implement the Repository and UnitOfWork patterns.