public void addUnderlying(IData underlyingData)
        {
            BaseIndexViewModel bivm
                = new BaseIndexViewModel("",
                                         underlyingData.Code_,
                                         underlyingData.Name_,
                                         underlyingData.Type_,
                                         underlyingData.Description_);

            baseIndexList_.Add(bivm);
        }
        public void addUnderlying(IData underlyingData) 
        {
            BaseIndexViewModel bivm 
                = new BaseIndexViewModel("",
                                        underlyingData.Code_,
                                        underlyingData.Name_,
                                        underlyingData.Type_,
                                        underlyingData.Description_);

            baseIndexList_.Add(bivm);

        }