DataSource.cs

using System;
using System.Collections.Generic;
using Foundation;
using UIKit;

namespace MonoDevelopTouchCells {
	public class DataSource : UITableViewDataSource {
		List<Item> Data { get; set; }

		public DataSource (IEnumerable<Item> data)
		{
			this.Data = new List<Item> (data);
		}

		public override nint RowsInSection (UITableView tableView, nint section)
		{
			return this.Data.Count;
		}

		public override nint NumberOfSections (UITableView tableView)
		{
			return 1;
		}

		public override UITableViewCell GetCell (UITableView tableView, NSIndexPath indexPath)
		{
			string customCellID = "MyCellID" + indexPath.Section + indexPath.Row;

			CustomCell cell = (CustomCell) tableView.DequeueReusableCell (customCellID);

			if (cell == null) {
				cell = new CustomCell (UITableViewCellStyle.Default, customCellID);

				Item item = this.Data [indexPath.Row];
				cell.Title = item.Title;
				cell.Checked = item.Checked;
			}

			return cell;
		}
	}
}