What is C# Repository Design Pattern
The repository pattern in C# is a design pattern that provides a separation between the data access layer and the business logic layer of an application. The goal of the repository pattern is to create a unified interface to access data, regardless of the underlying data source.
Repository Design Pattern
A repository is essentially a collection of objects that can be queried and updated. It provides a higher level of abstraction over the data source and can simplify the code by centralizing the data access logic.
Here's a basic example of a repository pattern in C#:
In this example, the IStudentRepository interface defines the methods that the repository should provide. The StudentRepository class implements the IStudentRepository interface and provides the actual implementation of the data access logic.
The StudentRepository class uses a DatabaseContext object to access the data source. The DatabaseContext could be an Entity Framework context, or any other data access technology.
By using the repository pattern, you can isolate the data access code in one place and avoid duplicating code throughout your application. This makes it easier to maintain the data access logic and can also make it easier to switch to a different data access technology in the future, if needed.
Entity Framework context
The Entity Framework context is an object that acts as a bridge between the application and the database. It represents the state of the database, tracks changes made to the data, and is responsible for persisting the changes back to the database.
The context is an implementation of the Unit of Work pattern and provides a single point of access to the database. This can simplify the code by centralizing the data access logic and avoiding duplicated code throughout the application.
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