public ObservableCollection <Entity.Student> GetStudentsData() { ObservableCollection <Entity.Student> studentsList = new ObservableCollection <Entity.Student>(); using (demoEntities db = new demoEntities()) { var students = db.GetStudents(); foreach (var student in students) { Student stud = new Student() { Id = student.Id, Name = student.Name, Mobile = student.Mobile, Address = student.Address, Stream = student.Stream, StreamName = student.StreamName }; studentsList.Add(stud); } } return(studentsList); }