public void add(DBConnection_EF con, AGROUPPORTSTATION point)
 {
     con.AGROUPPORTSTATION.Add(point);
     con.SaveChanges();
 }
 public void Update(DBConnection_EF con, AGROUPPORTSTATION point)
 {
     //bool isDetached = con.Entry(point).State == EntityState.Modified;
     //if (isDetached)
     con.SaveChanges();
 }