Engine中如何实现ArcMap中的Split Polygons功能？

​ IFeatureLayer polygonLayer = axMapControl1.get_Layer(1) as IFeatureLayer;

            IFeatureClass polygonFeatureClass = polygonLayer.FeatureClass;

            IEnvelope envelope = (polygonFeatureClass as IGeoDataset).Extent;

            IEnumFeature enumLineFeature = axMapControl1.Map.FeatureSelection as IEnumFeature;

            IFeatureConstruction featureCon = new FeatureConstructionClass();

            featureCon.SplitPolygonsWithLines(null, polygonFeatureClass, envelope, enumLineFeature, null, 0.00256);