From date and To date range in Dynamic Query

  private Query buidDynamicsQuery(Query _query)

    {

        this.retrieveQueryFilters(_query);

        QueryBuildDataSource qbdsPriceDiscAdmTrans = _query.dataSourceTable(tableNum(PriceDiscAdmTrans));

        qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, AccountCode)).value(queryValue(PriceDiscProductCodeType::All));

        qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, relation)).value(queryValue(PriceType::PriceSales));

        if (currencyCode)

        {

            qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, Currency)).value(queryValue(currencyCode));

        }

        if (toDate)

        {

            qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, FromDate)).value(queryRange(null, toDate));

        }

        if (fromDate)

        {

            qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, ToDate)).value(queryRange(fromDate, null));

            qbdsPriceDiscAdmTrans.addRange(fieldNum(PriceDiscAdmTrans, ToDate)).value(queryValue(dateNull()));

        }

        return _query;

    }