public static Task<bool> SetActiveRecordAsync( 
   ParcelLayer parcelLayer,
   long oid
)

string errorMessage = await QueuedTask.Run(async () =>
{
  Dictionary<string, object> RecordAttributes = new Dictionary<string, object>();
  string sNewRecord = "MyRecordName";
  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 recordsLayer = await myParcelFabricLayer.GetRecordsLayerAsync();
    var editOper = new EditOperation()
    {
      Name = "Create Parcel Fabric Record",
      ProgressMessage = "Create Parcel Fabric Record...",
      ShowModalMessageAfterFailure = true,
      SelectNewFeatures = false,
      SelectModifiedFeatures = false
    };
    RecordAttributes.Add("Name", sNewRecord);
    var editRowToken = editOper.Create(recordsLayer.FirstOrDefault(), RecordAttributes);
    if (!editOper.Execute())
      return editOper.ErrorMessage;

    var defOID = -1;
    var lOid = editRowToken.ObjectID.HasValue ? editRowToken.ObjectID.Value : defOID;
    await myParcelFabricLayer.SetActiveRecordAsync(lOid);
  }
  catch (Exception ex)
  {
    return ex.Message;
  }
  return "";
});
if (!string.IsNullOrEmpty(errorMessage))
  MessageBox.Show(errorMessage, "Create New Record.");