controls in dynamic html table

hi,
 I have a dynamic htmltable, in which I can add rows at runtime.
Code:
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Configuration;
using System.Web.Mail;
using System.Web.UI.WebControls.WebParts;
using System.Web.Security;
using System.Data.OleDb;
using System.IO;
using System.Text;

public partial class HR : System.Web.UI.Page
{

    //   private int numOfColumns = 4;

    private int ctr = 0;

    HtmlTable HtmlTable = null;
       
    protected void Page_Load(object sender, EventArgs e)
    ...