SectionHierachicalCatalogPartialRouter_RoutePartial.cs

public override object RoutePartial(PageData content, SegmentContext segmentContext)
{
  //Ask Episerver to resolve the object for requested URL
	object ob = base.RoutePartial(content, segmentContext);

	if (ob != null)
	{
		SegmentPair segment = segmentContext.GetNextValue(segmentContext.RemainingPath);

		if (!String.IsNullOrWhiteSpace(segment.Next))
		{
		  //If segment is a part of our predfined list
			if (this._segments.Contains(segment.Next, StringComparer.InvariantCultureIgnoreCase))
			{
			  //Then don't tell Episerver about the segment and ensure that it is skipped.
				segmentContext.RemainingPath = segment.Remaining;

				return ob;
			}
		}
	}

	return ob;
}