How to implement the Repository Pattern in an ASP.NET MVC Application Dhananjay Kumar Developer Evangelist – Infragistics Microsoft MVP

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Host : Dhananjay Kumar  Developer Evangelist – Infragistics  6 times Microsoft MVP  Blog : 

Agenda What is Repository Pattern Advantages of Repository Pattern Step by Step implementing Repository pattern Creating Core Project Creating Infrastructure Project Creating Test Project Creating MVC Project

Advantage of Repository Pattern Business logic can be unit tested without data access logic Database access code can be reused Database access code is centrally managed so easy to implement any database access policies such that caching Easy to implement domain logics Domain entities or business entities are strongly typed with the annotations

Some of the difficulties Duplicate code Difficulty implementing any data related logic or policies such that caching Difficulty in unit testing the business logic without having the data access layer Tightly coupled business logic and database access logic

Project Structure

ProjectResponsibilityType Core Project Domain entities and interface for database operations Class library Infrastructure Project Libraries to perform database operations. Such as Entity Framework library. Class library Test Project Unit Tests for Infrastructure projects Unit Test MVC ProjectMVC based web application using Infrastructure and Core projects libraries using Dependency Injection MVC

Let us write Code step by step to implement Repository Pattern

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