public int CrearMatricula(Matricula entity)
        {
            try
            {
                using (NotasDBEntities db = new NotasDBEntities())
                {
                    db.Matricula.Add(entity);
                    db.SaveChanges();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            return(1);
        }
        public int CrearEstudiante(Estudiante entity)
        {
            try
            {
                using (NotasDBEntities db = new NotasDBEntities())
                {
                    db.Estudiante.Add(entity);
                    db.SaveChanges();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            return(1);
        }