public static void UpdatingOnDisconnectedScenario() { SchoolDBContext context = new SchoolDBContext(); try { var modifiedStudent1 = new Estudiantes() { EstudianteId = 1, Nombres = "Jay", }; var modifiedStudent2 = new Estudiantes() { EstudianteId = 2, Nombres = "Juan", }; List <Estudiantes> modifiedStudents = new List <Estudiantes>() { modifiedStudent1, modifiedStudent2, }; context.UpdateRange(modifiedStudents); bool modified = context.SaveChanges() > 0; if (modified) { Console.WriteLine("Modificado"); } } catch (Exception) { throw; } finally { context.Dispose(); } }