From UITableView row to UIViewController

I have a UIViewController, a button to retrieve data from Sqlite database, puts the data into UITableView. From UITableView, how do I go to another UIViewController upon Row Select of a particular data ?

    public class TableSource : UITableViewSource{

        UIViewController parentController;
        protected string[] tableItems;
        protected string cellIdentifier = "TableCell";

        public TableSource (UIViewController parentController) 
        {
            this.parentController = parentController;
        }

        public TableSource (string[] items)
        {
            tableItems = items;
        }

        public override int RowsInSection (UITableView tableview, int section)
        {
            return tableItems.Length;
        }
        public override UITableViewCell GetCell (UITableView tableview, MonoTouch.Foundation.NSIndexPath       indexPath)
        {
            UITableViewCell cell = tableview.DequeueReusableCell (cellIdentifier);
            //if there are no cells to reuse create a new one
            if (cell == null)
                cell = new UITableViewCell (UITableViewCellStyle.Default, cellIdentifier);
            cell.TextLabel.Text = tableItems [indexPath.Row];
            return cell;
        }

        public override void RowSelected (UITableView tableView, NSIndexPath indexPath)
        {
            new UIAlertView("Assess Student", tableItems[indexPath.Row], null, "Confirm", null, "Cancel").Show();
            tableView.DeselectRow (indexPath, true);

        }

    }