public sealed class TableFrame : MapSurround, System.ComponentModel.INotifyPropertyChanged, System.IComparable, System.IEquatable<Element>  

//Create a new table frame on the active layout.

Layout layout = LayoutView.Active.Layout;

//Perform on the worker thread
await QueuedTask.Run(() =>
{
  //Build 2D envelope geometry
  Coordinate2D rec_ll = new Coordinate2D(1.0, 3.5);
  Coordinate2D rec_ur = new Coordinate2D(7.5, 4.5);
  Envelope rec_env = EnvelopeBuilder.CreateEnvelope(rec_ll, rec_ur);

  //Reference map frame
  MapFrame mf = layout.FindElement("Map Frame") as MapFrame;

  //Reference layer
  Map m = mf.Map;
  FeatureLayer lyr = m.FindLayers("GreatLakes").First() as FeatureLayer;

  //Build fields list
  var fields = new[] { "NAME", "Shape_Area", "Shape_Length" };

  //Construct the table frame
  TableFrame tabFrame = LayoutElementFactory.Instance.CreateTableFrame(layout, rec_env, mf, lyr, fields);
});

//Modify an existing tableframe using CIM properties.

//Reference the active layout
Layout layout = LayoutView.Active.Layout;

//Perform on the worker thread
await QueuedTask.Run(() =>
{
  //Reference table frame
  TableFrame TF = layout.FindElement("Table Frame") as TableFrame;

  //Modify CIM properties
  CIMTableFrame cimTF = TF.GetDefinition() as CIMTableFrame;
  cimTF.Alternate1RowBackgroundCount = 1;
  cimTF.Alternate2RowBackgroundCount = 1;

  //Apply the changes
  TF.SetDefinition(cimTF);
});