[MikeR]

Может я чего-то не понял, но почему нельзя использовать query?

public void lookup()
{
    Query                       queryLookup = new Query();
    QueryBuildDataSource        qbdsRPayGroupTable;
    QueryBuildDataSource        qbdsRPayGroupSetMemberTable;


    SYSTableLookup              sysTableLokup = SYSTableLookup::newParameters(TableNum(RPayGroupTable), this);
    ;

    sysTableLokup.addLookupfield(fieldNum(RPayGroupTable, PayGroup), true);
    sysTableLokup.addLookupfield(fieldNum(RPayGroupTable, Name), false);

    qbdsRPayGroupTable = queryLookup.addDataSource(TableNum(RPayGroupTable));

    qbdsRPayGroupSetMemberTable = qbdsRPayGroupTable.addDataSource(tablenum(RPayGroupSetMemberTable));
    qbdsRPayGroupSetMemberTable.relations(true);
    qbdsRPayGroupSetMemberTable.addRange(fieldnum(RPayGroupSetMemberTable, GroupSetId)).value(QueryValue(RHRMParameters::find().GroupSetIdEmplFilter));




    sysTableLokup.parmQuery(queryLookup);
    sysTableLokup.performFormLookup();

}