How to add rows dynamically to Table with controls embedded inside the table

<asp:Table runat="server" ID="table1" Width="40%" GridLines="Both" BackColor="white">
                       </asp:Table>

TableRow trow = new TableRow();
          TableCell tcellcolname = new TableCell();
          tcellcolname.Text = "column header";
          tcellcolname.Controls.Add(new TextBox());
          trow.Cells.Add(tcellcolname);
          table1.Rows.Add(trow);