public XmlNode AddMinimumDisplayAltitude(MinimumDisplayAltitudeType2 newValue)
 {
     if( newValue.IsNull() == false )
         return AppendDomChild(NodeType.Element, "", "MinimumDisplayAltitude", newValue.ToString());
     return null;
 }
 public void InsertMinimumDisplayAltitudeAt(MinimumDisplayAltitudeType2 newValue, int index)
 {
     if( newValue.IsNull() == false )
         InsertDomChildAt(NodeType.Element, "", "MinimumDisplayAltitude", index, newValue.ToString());
 }