Customize MonoTouch.Dialog's "Pull to Refresh" header

PullToAddView.cs

using System;
using MonoTouch.Dialog;
using System.Drawing;
using MonoTouch.UIKit;

namespace lifeboxapp.monotouch
{
  /// <summary>
	/// Override the default MonoTouch.Dialog Pull To Refresh view so it says "Pull To Add"
	/// </summary>
	public class PullToAddView : RefreshTableHeaderView
	{
		public PullToAddView (RectangleF rect) : base (rect)
		{
			BackgroundColor = UIColor.FromWhiteAlpha (1, 0.4f);

			StatusLabel.BackgroundColor = UIColor.Clear;
			StatusLabel.TextColor = UIColor.Black;

      //this doesn't make sense for "Pull to Add" so we clear the text color so it isn't seen
			LastUpdateLabel.TextColor = UIColor.Clear;
			LastUpdateLabel.ShadowOffset = new SizeF(0,0);
			LastUpdateLabel.BackgroundColor = UIColor.Clear;
		}

		RefreshViewStatus status = (RefreshViewStatus) (-1);
		public override void SetStatus (RefreshViewStatus status)
		{
			if (this.status == status)
				return;
			
			string s = "Release to Add";
			
			switch (status){
			case RefreshViewStatus.Loading:
				s = "Loading..."; 
				break;
				
			case RefreshViewStatus.PullToReload:
				s = "Pull down to Add...";
				break;
			}
			StatusLabel.Text = s;
		}
	}
}

PullToAddViewController.cs

using System;
using MonoTouch.Dialog;
using MonoTouch.UIKit;
using System.Drawing;

namespace lifeboxapp.monotouch
{
  /// Use this class instead of DialogViewController when implementing.
  /// To make this visible in your ViewController you need to add
  ///
  /// this.RefreshRequested += (object sender, EventArgs e) => {
  ///	  this.ReloadComplete();
  ///
	///		//do something here
	///	};
  public class PullToAddViewController : DialogViewController
	{
		public PullToAddViewController (UITableViewStyle style, RootElement root) : base(style, root)
		{
		}

		/// <Docs>The boundaries for the Refresh table header view</Docs>
		/// <returns></returns>
		/// <summary>
		/// Add our custom Pull to Add view instead of the default Pull to Refresh
		/// </summary>
		/// <param name="rect">Rect.</param>
		public override RefreshTableHeaderView MakeRefreshTableHeaderView (RectangleF rect)
		{
			return new PullToAddView (rect);
		}
	}
}