When used in GeometryEngine.QueryPointAndDistance or GeometryEngine.QueryPointAndDistance, describes whether the input point is on the left or right side of the curve. When used in GeometryEngine.SideBuffer or GeometryEngine.SideBuffer, describes which side of the input geometry to construct the buffer. The direction of the curve determines the left and right sides.

public enum LeftOrRightSide : System.Enum, System.IComparable, System.IConvertible, System.IFormattable  

Public Enum LeftOrRightSide 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable