generic repository

Question

var j = db.jobs.Where(x => x.Title.Contains(keyone)).ToList(); i want to implement this using generic repository but i can't figure out how to do it.using generic repo

Sangeetha S · Answer

Generic Repository : You created a generic repository interface and implementation, including a Find method for filtering. Entity and Context : Defined your Job entity and ApplicationDbContext . Service Layer : Implemented a service ( JobService ) to use the repository for querying jobs by title.

umair mohsin · Answer

i have tried this and results are good but i want to to do like this IEnumerable Search(Expression > where, Expression > select); its the interface fuction definition and needs to be implemented but using this results are not good

Sophia Carter · Answer

Of course! Implementing the functionality you mentioned using a generic repository is a great approach for maintaining a clean and scalable data access layer in your application. To achieve this using a generic repository pattern, you can follow these steps: 1. Define a Generic Repository Interface: Create a generic repository interface that includes common CRUD (Create, Read, Update, Delete) operations like GetById, GetAll, Add, Update, Delete, etc. public interface IRepository { TEntity GetById(int id); IEnumerable GetAll(); void Add(TEntity entity); void Update(TEntity entity); void Delete(TEntity entity); // Add more specific methods as needed } 2. Implement the Generic Repository: Create a concrete implementation of the generic repository interface. This implementation will interact with your database context. public class Repository : IRepository where TEntity : class { private readonly DbContext _context; public Repository(DbContext context) { _context = context; } public TEntity GetById(int id) { return _context.Set ().Find(id); } public IEnumerable GetAll() { return _context.Set ().ToList(); } public void Add(TEntity entity) { _context.Set ().Add(entity); } public void Update(TEntity entity) { _context.Set ().Update(entity); } public void Delete(TEntity entity) { _context.Set ().Remove(entity); } // Implement other methods if needed } 3. Use the Generic Repository in Your Application: You can now use the generic repository in your application to perform operations like filtering by the job title containing a specific keyword. var jobsContainingKeyword = repository.GetAll().Where(x => x.Title.Contains(keyone)).ToList(); By following the above steps, you can implement a generic repository pattern that allows you to abstract data access operations and easily extend the functionality in the future. This approach promotes reusability and maintainability in your codebase.