public void AddLUsing(LUsing l)
 {
     foreach (CUsing item in l)
     {
         this.Add(item);
     }
 }
        private void GenerateUsings(CSourceWriter sw)
        {
            bool   escribioUsings = false;
            LUsing l = new LUsing();

            foreach (var item in this.lElement)
            {
                l.AddLUsing(item.lUsing);
            }
            foreach (CUsing u in l)
            {
                u.Generate(sw);
                escribioUsings = true;
            }
            if (escribioUsings)
            {
                sw.EndLine();
            }
        }