1 double len; 2                 IFeatures66 features = featureLayer.FeatureGroups.Polyline.GetCurrentFeatures(); 3                 foreach (IFeature66 feature in features) 4                 { 5                     len = 0; 6                     if (feature.ObjectType == ObjectTypeCode.OT_FEATURE) 7                     { 8                         TerraExplorerX.IGeometry geometry = feature.Geometry; 9                         if (geometry.GeometryType == SGGeometryTypeId.SG_MULTILINESTRING)10                         {11                             IMultiLineString line = (IMultiLineString)geometry;12                             len = line.Length;13                         }14                         else if (geometry.GeometryType == SGGeometryTypeId.SG_LINESTRING)15                         {16                             ILineString linestr = (ILineString)geometry;17                             len = linestr.Length;18                         }19                         foreach (IFeatureAttribute66 attr in feature.FeatureAttributes)20                         {21                             if (attr.Name == "Id")22                             {23                                 SetDataTableValue(dt, attr.Value, Math.Round(len, 3));24                                 break;25                             }26                         }27                     }28                 }