public sealed class FindNetworkRowQuery 

{
  // Given a list of diagram feature GlobalIDs, find the corresponding utility network rows in a network diagram
  static void FindDiagramRows(NetworkDiagram diagram, List<Guid> globalIDs)
  {
    FindNetworkRowQuery rowQuery = new FindNetworkRowQuery();
    rowQuery.DiagramFeatureGlobalIDs = globalIDs;
    rowQuery.AddAggregations = true;

    IReadOnlyList<FindResultItem> rows = diagram.FindNetworkRows(rowQuery);
    foreach (FindResultItem findRow in rows)
    {
      long objectID = findRow.ObjectID;
      Guid guid = findRow.GlobalID;
      GeometryType geometryType = findRow.GeometryType;
      int sourceID = findRow.SourceID;
    }
  }
}