Not implemented.
[Visual Basic .NET] Public Function get_EnumShortestPath ( _ ByVal fromPart As Integer, _ ByVal FromPoint As Integer, _ ByVal toPart As Integer, _ ByVal ToPoint As Integer _ ) As IEnumSegment
[C#] public IEnumSegment get_EnumShortestPath ( int fromPart, int FromPoint, int toPart, int ToPoint );
[C++]
HRESULT get_EnumShortestPath(
  long fromPart,
  long FromPoint,
  long toPart,
  long ToPoint,
  IEnumSegment** shortPathEnum
);
[C++]Parameters
fromPart fromPart is a parameter of type long FromPoint FromPoint is a parameter of type long toPart toPart is a parameter of type long ToPoint ToPoint is a parameter of type long shortPathEnum [out, retval]shortPathEnum is a parameter of type IEnumSegment
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.