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Add very dynamic controls to a asp:table

Posted By:      Posted Date: September 23, 2010    Points: 0   Category :ASP.Net

 Hi all. I want to create a TableRow with a TextBox. I want when click a Button a TableRow add to asp:table. in Button_Click event code I can add a row by a TableRow & TableCell & TextBox Objects and with help a HiddenField.
My problem is that: after add first row that has a textbox, next row doesn't add by click button. I think Controls delete after post back in server and first textbox delete and new textbox add same position. what is solution after every click, a row with textbox add to the table?

            TableRow tr = new TableRow();
            TableCell tc1 = new TableCell();
            TableCell tc2 = new TableCell();
            TableCell tc3 = new TableCell();
            TextBox txt1 = new TextBox();
            TextBox txt2 = new TextBox();
            DropDownList drp = new DropDownList(); drp.Width = Unit.Pixel(100);


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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;

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