How to use Asp.Net HTML Table Object Dynamically in Asp.Net

In Asp.Net Form Page Load Write like this.

        TextBox txtFName = new TextBox();
        txtFName.ID = "txtFName";
        this.form1.Controls.Add(txtFName);

        HtmlTable table = new HtmlTable();
        HtmlTableRow tr = new HtmlTableRow();
        HtmlTableCell td = new HtmlTableCell();
        td.InnerText = "Enter FName";
        HtmlTableCell td1 = new HtmlTableCell();
        td1.Controls.Add(txtFName);
        tr.Cells.Add(td);
        tr.Cells.Add(td1);
        table.Rows.Add(tr);
        this.form1.Controls.Add(table);