Repository Pattern

Question

I am facing these errors

Bohdan Stupak · Answer

I've voted up SingleOrDefaultOption But I'm also here to tell that you don't need _db.Books.Where(x => x.Id == Id).FirstOrDefault(); Since you can do directly _db.Books.FirstOrDefault(x => x.Id == Id);

Sachin Singh · Answer

for single object test return _db.Books.Where(x=>x.Id==Id).SingleOrDefault();

Uttam Kumar · Answer

Find() is not a linq function instead you can use _db.Books.Where(x => x.Id == Id).FirstOrDefault();

Arbaz Qureshi · Answer

Please suggest me link tutorial that I will follow and make management system or any thing else in ASP.Net Core for learning.

Muhammad Imran Ansari · Answer

You can get the source from the link which implemented repositry pattern: https://www.codeproject.com/Articles/1119652/Repository-Pattern-For-Net

Arbaz Qureshi · Answer

Please send the link to which repository Pattern properly works or send me the full project

Muhammad Imran Ansari · Answer

It seems, There is datatype issue, Find() method works on List type object. Check the nice article on repository pattern. https://codewithshadman.com/repository-pattern-csharp/

Rohan · Answer

Arbaz Quershi Please check this link https://code-maze.com/net-core-web-development-part4/

Arbaz Qureshi · Answer

Please send me a link in which I can learn about the repository pattern

Sachin Singh · Answer

Remove the casting just use ToList(), if error doesn't resolve then share your Context class or Generic Repo that you are using, where is _db defined, are you using dependency injection? return _db.Books.ToList();

Repository Pattern

Answers (10)