public void UpdateEventDetails(string eventId, DateTime startDate, DateTime endDate)
 {
     using (SystemaDeTurnosEntities db = new SystemaDeTurnosEntities())
     {
         Turno eventDetail = db.Turno.Where(x => x.Id_Turno == Convert.ToInt32(eventId)).First();
         eventDetail.Fecha_Inicio = startDate;
         eventDetail.Fecha_Fin    = endDate;
         db.SaveChanges();
     }
 }