private void GetData() { RepositoryContext db = new RepositoryContext("RepositoryContext"); AnimalRepository animalRepo = new AnimalRepository(db); OwnerRepository ownerRepo = new OwnerRepository(db); VetRepository vetRepo = new VetRepository(db); VisitRepository visitRepo = new VisitRepository(db); var animalList = animalRepo.All().ToList(); dataGridViewAnimals.DataSource = animalList; //comboBoxAnimals.DataSource = animalList; var ownerList = ownerRepo.All().ToList(); dataGridViewOwners.DataSource = ownerList; comboBoxOwnerList.DataSource = ownerList; comboBoxOwnersFromVisit.DataSource = ownerList; var vetList = vetRepo.All().ToList(); dataGridViewVets.DataSource = vetList; comboBoxVets.DataSource = vetList; var visitList = visitRepo.All().ToList(); dataGridViewVisits.DataSource = visitList; }