How to Create Dynamic TextBox And Get Its Value

Before i was explain How to create dynamic Asp controls.How to Generate Dynamic Asp ControlsNow Here i will show to you how to retrieving the value of the dynamically created Text Box In Asp.Net. 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace ashokdemo

{

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            TextBox new_textbox = new TextBox();

            new_textbox.ID = "txt" + 1;

            new_textbox.Text = "";

            PlaceHolder1.Controls.Add(new_textbox);

        }

        protected void Button1_Click(object sender, EventArgs e)

        {

            string OptionID = "txt" + 1;

            TextBox tb = (TextBox)PlaceHolder1.FindControl(OptionID);

            Response.Write(tb.Text);

    

                  }}}}