public sealed class ParcelLayer : CompositeLayer, ArcGIS.Desktop.Core.IMetadataInfo, ILayerContainer, IMetadataSource, System.ComponentModel.INotifyPropertyChanged  

string path = @"C:\MyTestData\MyFileGeodatabase.gdb\MyFeatureDS\MyFabric";
await QueuedTask.Run(() =>
{
  var lyrCreateParams = new ParcelLayerCreationParams(new Uri(path));
  try
  {
    var parcelLayer = LayerFactory.Instance.CreateLayer<ParcelLayer>(
      lyrCreateParams, MapView.Active.Map);
  }
  catch (Exception ex)
  {
    MessageBox.Show(ex.Message, "Add Parcel Fabric Layer");
  }
});

string errorMessage = await QueuedTask.Run(() =>
{
  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 theActiveRecord = myParcelFabricLayer.GetActiveRecord();
    if (theActiveRecord == null)
      return "There is no Active Record. Please set the active record and try again.";
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Get Active Record.");

string errorMessage = await QueuedTask.Run(async () =>
{
  try
  {
    string sExistingRecord = "MyRecordName";
    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.";

    bool bSuccess = await myParcelFabricLayer.SetActiveRecordAsync(sExistingRecord);
    if (!bSuccess)
      return "No record called " + sExistingRecord + " was found.";
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Set Active Record.");