This is a sample code to create lookup runtime in axapta form    public void lookup()    {    SysTableLookup tableLookup;    QueryBuildDataSource qbds, qbds1;    QueryBuildLink QueryBuildLink1;    Query q = new Query();    ;    tableLookup = SysTableLookup::newParameters(tableNum(_Taluka),this);    qbds = q.addDataSource(tablenum(_Taluka));    qbds.addRange(fieldnum(_Taluka, _DistrictCd)).value(District.valueStr());    tableLookup.parmQuery(q);    tableLookup.addLookupfield(fieldNum(_Taluka,_TalukaCd));    tableLookup.addLookupfield(fieldNum(_Taluka, _TalukaName));    tableLookup.performFormLookup();    }     
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