Get Lookup fields using SystableLookUp in Ax 2012

public void lookup()
{
    Query query = new Query();
    QueryBuildDataSource queryBuildDataSource,qbdDirparty,qbdEmail;
    QueryBuildRange queryBuildRange,queryBuildRangeEmail;
    SysTableLookup sysTableLookup;

    //LogisticsElectronicAddress
    qbdEmail = query.addDataSource(tableNum(LogisticsElectronicAddress));
    queryBuildRangeEmail = qbdEmail.addRange(fieldNum(LogisticsElectronicAddress,DIPL_IsSend));
    queryBuildRangeEmail.value(queryValue(NoYes::Yes));

    //DirPartyTable
    qbdDirparty = qbdEmail.addDataSource(tableNum(DirPartyTable));
    qbdDirparty.addLink(fieldNum(LogisticsElectronicAddress,PrivateForParty),fieldNum(DirPartyTable,RecId));

    //CustTable
    queryBuildDataSource = qbdDirparty.addDataSource(tableNum(CustTable));
    queryBuildDataSource.relations(true);
    queryBuildDataSource.joinMode(JoinMode::InnerJoin);

    queryBuildRange = queryBuildDataSource.addRange(fieldNum(CustTable, AccountNum));
    queryBuildRange.value(SalesTable_CustAccount.valueStr());


    sysTableLookup = SysTableLookup::newParameters(tableNum(LogisticsElectronicAddress), this);

    sysTableLookup.addLookupField(fieldNum(LogisticsElectronicAddress, Locator));
    sysTableLookup.addLookupField(fieldNum(LogisticsElectronicAddress, DIPL_IsSend));

    sysTableLookup.parmQuery(query);
    sysTableLookup.performFormLookup();

}