com.ibm.gre.IRMBatchQuery.AddOptionalField Function
Used internally in the Initialize method to add optional fields

Private void AddOptionalField (System.Xml.XmlElement, int, string, string, int)
  Type Name Description  
    System.Xml.XmlElement lm The XML element for the field  
    int dataType data type  
    string key The name of the element used in the GetEligibleFilePlanComponents element of the Query XML  
    string caption Caption  
    int nControlType Typ of control to use.  
  Return Description  
    void