public IHttpActionResult GetAlumnosID()
        {
            var headers = Request.Headers;

            if (headers.Contains("ID"))
            {
                return(Ok(ADO_Alumnos.GetAlumno(Convert.ToInt32(headers.GetValues("ID").First()))));
            }
            return(BadRequest("Error"));
        }
        public IHttpActionResult EliminarAlumno(int ID)
        {
            string a = ADO_Alumnos.Elimnar_Alumno(ID);

            if (a != "")
            {
                return(Ok(a));
            }
            else
            {
                return(BadRequest("Error"));
            }
        }
        public IHttpActionResult ActualizarAlumno(Alumno e)
        {
            if (e == null)
            {
                return(BadRequest("Error"));
            }

            Alumno a = ADO_Alumnos.Actualizar_Alumno(e);

            if (a != null)
            {
                return(Ok(a));
            }
            else
            {
                return(BadRequest("Error"));
            }
        }
        public IHttpActionResult InsertEstudiante(Alumno e)
        {
            if (e == null)
            {
                return(BadRequest("Error"));
            }

            Alumno es = ADO_Alumnos.Insertar(e);

            if (es != null)
            {
                return(Ok(es));
            }
            else
            {
                return(BadRequest("Error"));
            }
        }
 public IHttpActionResult GetAlumnosID(int ID)
 {
     return(Ok(ADO_Alumnos.GetAlumno(ID)));
 }
 public IHttpActionResult GetEstudiantes()
 {
     return(Ok(ADO_Alumnos.Obtener_Todo()));
 }