This class represents a help parameter node in the owning Assoc2dConstraintGroup. 

Help parameters are only applicable for splines and ellipses and are required for some kind of constraints. 

A HelpParameter object is always connected with a GeometricalConstraint object and a ConstrainedGeometry object.

Autodesk.AutoCAD.DatabaseServices.ConstraintGroupNode
    Autodesk.AutoCAD.DatabaseServices.HelpParameter

Public Class HelpParameter
Inherits ConstraintGroupNode

public class HelpParameter : ConstraintGroupNode;