public static Task<List<FeatureLayer>> GetParcelPolygonLayerByTypeNameAsync( 
   ParcelLayer parcelLayer,
   string typeName
)

 string errorMessage = await QueuedTask.Run(async () =>
{
   // check for selected layer
   if (MapView.Active.GetSelectedLayers().Count == 0)
    return "Please select a target parcel polygon layer in the table of contents.";
   //get the feature layer that's selected in the table of contents
   var destPolygonL = MapView.Active.GetSelectedLayers().OfType<FeatureLayer>().FirstOrDefault();
  try
  {
    var myParcelFabricLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
     //if there is no fabric in the map then bail
     if (myParcelFabricLayer == null)
      return "There is no fabric in the map.";
    var pRec = myParcelFabricLayer.GetActiveRecord();
    if (pRec == null)
      return "There is no Active Record. Please set the active record and try again.";
    string ParcelTypeName = "";
    IEnumerable<string> parcelTypeNames = await myParcelFabricLayer.GetParcelTypeNamesAsync();
    foreach (string parcelTypeNm in parcelTypeNames)
    {
      var polygonLyrParcelTypeEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(parcelTypeNm);
      foreach (FeatureLayer lyr in polygonLyrParcelTypeEnum)
        if (lyr == destPolygonL)
        {
          ParcelTypeName = parcelTypeNm;
          break;
        }
    }
    if (String.IsNullOrEmpty(ParcelTypeName))
      return "Please select a target parcel polygon layer in the table of contents.";
    var srcFeatLyr = MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>().FirstOrDefault(l => l.Name.Contains("MySourceLines") && l.IsVisible);
    if (srcFeatLyr == null)
      return "Looking for a layer named 'MySourceLines' in the table of contents.";
     //now get the line layer for this parcel type
     var destLineLyrEnum = await myParcelFabricLayer.GetParcelLineLayerByTypeNameAsync(ParcelTypeName);
    if (destLineLyrEnum.Count() == 0) //make sure there is one in the map
       return ParcelTypeName + " not found.";
    var destLineL = destLineLyrEnum.FirstOrDefault();
    if (destLineL == null || destPolygonL == null)
      return "";
    var editOper = new EditOperation()
    {
      Name = "Copy Line Features To Parcel Type",
      ProgressMessage = "Copy Line Features To Parcel Type...",
      ShowModalMessageAfterFailure = true,
      SelectNewFeatures = true,
      SelectModifiedFeatures = false
    };
    var ids = new List<long>((srcFeatLyr as FeatureLayer).GetSelection().GetObjectIDs());
    if (ids.Count == 0)
      return "No selected lines were found. Please select line features and try again.";
    editOper.CopyLineFeaturesToParcelType(srcFeatLyr, ids, destLineL, destPolygonL);
    if (!editOper.Execute())
      return editOper.ErrorMessage;
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
 if (!string.IsNullOrEmpty(errorMessage))
   MessageBox.Show(errorMessage, "Copy Line Features To Parcel Type.");

 string errorMessage = await QueuedTask.Run(async () =>
{
   // check for selected layer
   if (MapView.Active.GetSelectedLayers().Count == 0)
    return "Please select a source parcel polygon feature layer in the table of contents.";
  try
  {
    var myParcelFabricLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
    if (myParcelFabricLayer == null)
      return "No parcel layer found in the map.";

     //get the feature layer that's selected in the table of contents
     var srcParcelFeatLyr = MapView.Active.GetSelectedLayers().OfType<FeatureLayer>().FirstOrDefault();
    string sTargetParcelType = "Tax";
    var destLineLEnum = await myParcelFabricLayer.GetParcelLineLayerByTypeNameAsync(sTargetParcelType);
    if (destLineLEnum.Count() == 0)
      return "";
    var destLineL = destLineLEnum.FirstOrDefault();
    var destPolygonLEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(sTargetParcelType);
    if (destPolygonLEnum.Count() == 0)
      return "";
    var destPolygonL = destPolygonLEnum.FirstOrDefault();
    if (destLineL == null || destPolygonL == null)
      return "";
    var theActiveRecord = myParcelFabricLayer.GetActiveRecord();
    if (theActiveRecord == null)
      return "There is no Active Record. Please set the active record and try again.";
    var editOper = new EditOperation()
    {
      Name = "Copy Lines To Parcel Type",
      ProgressMessage = "Copy Lines To Parcel Type ...",
      ShowModalMessageAfterFailure = true,
      SelectNewFeatures = true,
      SelectModifiedFeatures = false
    };
    var ids = new List<long>(srcParcelFeatLyr.GetSelection().GetObjectIDs());
    if (ids.Count == 0)
      return "No selected parcels found. Please select parcels and try again.";
     //add the standard feature line layers source, and their feature ids to a new Dictionary
     var sourceParcelFeatures = new Dictionary<MapMember, List<long>>();
    sourceParcelFeatures.Add(srcParcelFeatLyr, ids);
    editOper.CopyParcelLinesToParcelType(myParcelFabricLayer, SelectionSet.FromDictionary(sourceParcelFeatures), destLineL, destPolygonL, true, false, true);
    if (!editOper.Execute())
      return editOper.ErrorMessage;
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
 if (!string.IsNullOrEmpty(errorMessage))
   MessageBox.Show(errorMessage, "Copy Parcel Lines To Parcel Type.");

 var myParcelFabricLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
if (myParcelFabricLayer == null)
  return "Parecl layer not found in the map.";
 //get the source polygon layer from the parcel fabric layer type, in this case a layer called Lot
 var srcFeatLyrEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync("Lot");
if (srcFeatLyrEnum.Count() == 0)
  return "";
var sourcePolygonL = srcFeatLyrEnum.FirstOrDefault();
 //get the target polygon layer from the parcel fabric layer type, in this case a layer called Tax
 var targetFeatLyrEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync("Tax");
if (targetFeatLyrEnum.Count() == 0)
  return "";
var targetFeatLyr = targetFeatLyrEnum.FirstOrDefault();
var ids = new List<long>(sourcePolygonL.GetSelection().GetObjectIDs());
if (ids.Count == 0)
  return "No selected parcels found. Please select parcels and try again.";
 //add polygon layers and the feature ids to be duplicated to a new Dictionary
 var sourceFeatures = new Dictionary<MapMember, List<long>>();
sourceFeatures.Add(sourcePolygonL, ids);
try
{
  var theActiveRecord = myParcelFabricLayer.GetActiveRecord();
  if (theActiveRecord == null)
    return "There is no Active Record. Please set the active record and try again.";
  var editOper = new EditOperation()
  {
    Name = "Duplicate Parcels",
    ProgressMessage = "Duplicate Parcels...",
    ShowModalMessageAfterFailure = true,
    SelectNewFeatures = true,
    SelectModifiedFeatures = false
  };
  editOper.DuplicateParcels(myParcelFabricLayer,
    SelectionSet.FromDictionary(sourceFeatures), theActiveRecord, targetFeatLyr);
  if (!editOper.Execute())
    return editOper.ErrorMessage;
}
catch (Exception ex)
{
  return ex.Message;
}

string errorMessage = await QueuedTask.Run(async () =>
{
  var myParcelFabricLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
  if (myParcelFabricLayer == null)
    return "Please add a parcel fabric to the map";
  try
  {
    FeatureLayer destPolygonL = null;
    //find the first layer that is a parcel type, is non-historic, and has a selection
    bool bFound = false;
    var ParcelTypesEnum = await myParcelFabricLayer.GetParcelTypeNamesAsync();
    foreach (FeatureLayer mapFeatLyr in MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>())
    {
      foreach (string ParcelType in ParcelTypesEnum)
      {
        var layerEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(ParcelType);
        foreach (FeatureLayer flyr in layerEnum)
        {
          if (flyr == mapFeatLyr)
          {
            bFound = mapFeatLyr.SelectionCount > 0;
            destPolygonL = mapFeatLyr;
            break;
          }
        }
        if (bFound) break;
      }
      if (bFound) break;
    }
    if (!bFound)
      return "Please select parcels to set as historic.";

    var theActiveRecord = myParcelFabricLayer.GetActiveRecord();
    if (theActiveRecord == null)
      return "There is no Active Record. Please set the active record and try again.";

    var ids = new List<long>(destPolygonL.GetSelection().GetObjectIDs());
    //can do multi layer selection but using single per code above
    var sourceFeatures = new Dictionary<MapMember, List<long>>();
    sourceFeatures.Add(destPolygonL, ids);
    var editOper = new EditOperation()
    {
      Name = "Set Parcels Historic",
      ProgressMessage = "Set Parcels Historic...",
      ShowModalMessageAfterFailure = true,
      SelectNewFeatures = true,
      SelectModifiedFeatures = false
    };
    editOper.SetParcelHistoryRetired(myParcelFabricLayer,
      SelectionSet.FromDictionary(sourceFeatures), theActiveRecord);
    if (!editOper.Execute())
      return editOper.ErrorMessage;
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Set Parcels Historic.");

string errorMessage = await QueuedTask.Run(async () =>
{
  var myParcelFabricLayer = MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
  if (myParcelFabricLayer == null)
    return "Please add a parcel fabric to the map";
  try
  {
    FeatureLayer parcelPolygonLyr = null;
    //find the first layer that is a polygon parcel type, is non-historic, and has a selection
    bool bFound = false;
    var ParcelTypesEnum = await myParcelFabricLayer.GetParcelTypeNamesAsync();
    foreach (FeatureLayer mapFeatLyr in MapView.Active.Map.GetLayersAsFlattenedList().OfType<FeatureLayer>())
    {
      foreach (string ParcelType in ParcelTypesEnum)
      {
        var layerEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(ParcelType);
        foreach (FeatureLayer flyr in layerEnum)
        {
          if (flyr == mapFeatLyr)
          {
            bFound = mapFeatLyr.SelectionCount > 0;
            parcelPolygonLyr = mapFeatLyr;
            break;
          }
        }
        if (bFound) break;
      }
      if (bFound) break;
    }
    if (!bFound)
      return "Please select parcels to shrink to seeds.";
    var editOper = new EditOperation()
    {
      Name = "Shrink Parcels To Seeds",
      ProgressMessage = "Shrink Parcels To Seeds...",
      ShowModalMessageAfterFailure = true,
      SelectNewFeatures = true,
      SelectModifiedFeatures = false
    };
    var ids = new List<long>(parcelPolygonLyr.GetSelection().GetObjectIDs());
    var sourceParcelFeatures = new Dictionary<MapMember, List<long>>();
    sourceParcelFeatures.Add(parcelPolygonLyr, ids);
    editOper.ShrinkParcelsToSeeds(myParcelFabricLayer, SelectionSet.FromDictionary(sourceParcelFeatures));
    if (!editOper.Execute())
      return editOper.ErrorMessage;
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Shrink Parcels To Seeds.");

string sReportResult = "Polygon Information --" + Environment.NewLine;
string sParcelTypeName = "tax";
string errorMessage = await QueuedTask.Run(async () =>
{
  var myParcelFabricLayer =
    MapView.Active.Map.GetLayersAsFlattenedList().OfType<ParcelLayer>().FirstOrDefault();
  //if there is no fabric in the map then bail
  if (myParcelFabricLayer == null)
    return "There is no fabric layer in the map.";

  //first get the parcel type feature layer
  var featSrcLyr = myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(sParcelTypeName).Result.FirstOrDefault();

  if (featSrcLyr.SelectionCount == 0)
    return "There is no selection on the " + sParcelTypeName + " layer.";

  sReportResult += " Parcel Type: " + sParcelTypeName + Environment.NewLine;
  sReportResult += " Poygons: " + featSrcLyr.SelectionCount + Environment.NewLine + Environment.NewLine;

  try
  {
    // ------- get the selected parcels ---------
    var ids = new List<long>((featSrcLyr as FeatureLayer).GetSelection().GetObjectIDs());
    var sourceParcels = new Dictionary<MapMember, List<long>>();
    sourceParcels.Add(featSrcLyr, ids);
    //---------------------------------------------
    ParcelFeatures parcFeatures =
                    await myParcelFabricLayer.GetParcelFeaturesAsync(SelectionSet.FromDictionary(sourceParcels));
    //since we know that we want to report on Tax lines only, and for this functionality 
    // we can use any of the Tax line layer instances (if there happens to be more than one)
    // we can get the first instance as follows
    FeatureLayer myLineFeatureLyr =
        myParcelFabricLayer.GetParcelLineLayerByTypeNameAsync(sParcelTypeName).Result.FirstOrDefault();
    if (myLineFeatureLyr == null)
      return sParcelTypeName + " line layer not found";

    FeatureLayer myPointFeatureLyr =
        myParcelFabricLayer.GetPointsLayerAsync().Result.FirstOrDefault();
    if (myPointFeatureLyr == null)
      return "fabric point layer not found";

    var LineInfo = parcFeatures.Lines; //then get the line information from the parcel features object
    //... and then do some work for each of the lines
    int iRadiusAttributeCnt = 0;
    int iDistanceAttributeCnt = 0;
    sReportResult += "Line Information --";
    foreach (KeyValuePair<string, List<long>> kvp in LineInfo)
    {
      if (kvp.Key.ToLower() != sParcelTypeName)
        continue; // ignore any other lines from different parcel types

      foreach (long oid in kvp.Value)
      {
        var insp = myLineFeatureLyr.Inspect(oid);
        var dRadius = insp["RADIUS"];
        var dDistance = insp["DISTANCE"];

        if (dRadius != DBNull.Value)
          iRadiusAttributeCnt++;
        if (dDistance != DBNull.Value)
          iDistanceAttributeCnt++;
        //Polyline poly = (Polyline)insp["SHAPE"];
      }
      sReportResult += Environment.NewLine + " Distance attributes: " + iDistanceAttributeCnt.ToString();
      sReportResult += Environment.NewLine + " Radius attributes: " + iRadiusAttributeCnt.ToString();
    }

    var PointInfo = parcFeatures.Points; //get the point information from the parcel features object
    //... and then do some work for each of the points
    sReportResult += Environment.NewLine + Environment.NewLine + "Point Information --";
    int iFixedPointCnt = 0;
    int iNonFixedPointCnt = 0;
    foreach (long oid in PointInfo)
    {
      var insp = myPointFeatureLyr.Inspect(oid);
      var isFixed = insp["ISFIXED"];
      if (isFixed == DBNull.Value || (int)isFixed == 0)
        iNonFixedPointCnt++;
      else
        iFixedPointCnt++;
      // var pt = insp["SHAPE"];

    }
    sReportResult += Environment.NewLine + " Fixed Points: " + iFixedPointCnt.ToString();
    sReportResult += Environment.NewLine + " Non-Fixed Points: " + iNonFixedPointCnt.ToString();
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Get Parcel Features");
else
  MessageBox.Show(sReportResult, "Get Parcel Features");

private async Task<string> GetParcelTypeNameFromFeatureLayer(ParcelLayer myParcelFabricLayer, FeatureLayer featLayer, GeometryType geomType)
{
  if (featLayer == null) //nothing to do, return empty string
    return String.Empty;
  IEnumerable<string> parcelTypeNames = await myParcelFabricLayer.GetParcelTypeNamesAsync();
  foreach (string parcelTypeName in parcelTypeNames)
  {
    if (geomType == GeometryType.Polygon)
    {
      var polygonLyrParcelTypeEnum = await myParcelFabricLayer.GetParcelPolygonLayerByTypeNameAsync(parcelTypeName);
      foreach (FeatureLayer lyr in polygonLyrParcelTypeEnum)
        if (lyr == featLayer)
          return parcelTypeName;

      polygonLyrParcelTypeEnum = await myParcelFabricLayer.GetHistoricParcelPolygonLayerByTypeNameAsync(parcelTypeName);
      foreach (FeatureLayer lyr in polygonLyrParcelTypeEnum)
        if (lyr == featLayer)
          return parcelTypeName;
    }
    if (geomType == GeometryType.Polyline)
    {
      var lineLyrParcelTypeEnum = await myParcelFabricLayer.GetParcelLineLayerByTypeNameAsync(parcelTypeName);
      foreach (FeatureLayer lyr in lineLyrParcelTypeEnum)
        if (lyr == featLayer)
          return parcelTypeName;

      lineLyrParcelTypeEnum = await myParcelFabricLayer.GetHistoricParcelLineLayerByTypeNameAsync(parcelTypeName);
      foreach (FeatureLayer lyr in lineLyrParcelTypeEnum)
        if (lyr == featLayer)
          return parcelTypeName;
    }
  }
  return String.Empty;
}