I´m with problems using queryByAttributes... getResult(0) always return null... any idea? ps.: using c# thx layer = mp.getLayerByName("layer"); string value = "'[oid]' = '32141'"; if ((layer.queryByAttributes(mp,"oid", value, 0))==1) { resultCacheMemberObj result = new resultCacheMemberObj(); result =layer.getResult(0); }