/// <summary>
 /// Caches the fields used for wrapped properties
 /// </summary>
 private void CacheFields()
 {
     ESRI.ArcGIS.Geodatabase.IObjectClass ftClass = base._feature.Class;
     _ipidIdx        = ftClass.Fields.FindField(ConfigUtil.IpidFieldName);
     _bufferTubesIdx = ftClass.Fields.FindField(ConfigUtil.NumberOfBuffersFieldName);
     _fibersIdx      = ftClass.Fields.FindField(ConfigUtil.NumberOfFibersFieldName);
 }