How to handle Dynamically Create Image Button Click Event

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C#

ASP.NET

I need to create Image Button dynamically, and have to generate click event.. But while clicking on image button, the click event is not generating and hiding the Image button.. What is the problem in my code..

This is my code..

 ImageButton imgBtn; 

protected void Button1_Click(object sender, EventArgs e)
        {
            DBConnections.GetCon  obj= new DBConnections.GetCon();

            MySqlConnection con = new MySqlConnection(obj.getConStr());
            con.Open();
            MySqlCommand cmd = new MySqlCommand("SELECT * FROM <tabel>",con);
            MySqlDataReader dr = cmd.ExecuteReader();

            while (dr.Read())
            {
                imgBtn = new ImageButton();
                //Image imgBtn = new Image();
                
                
                imgBtn.ID = dr.GetInt32(1).ToString();
                if (dr.GetInt32(2) == 0)
                {
                    imgBtn.ImageUrl = "~/Users/SeatImg/1.jpg";
                }
                else
                {
                    imgBtn.ImageUrl = "~/Users/SeatImg/3.jpg";
                }



                imgBtn.Click += new ImageClickEventHandler(img_Click);
                this.Panel2.Controls.Add(imgBtn);
            }
            con.Close();

        }

        protected void img_Click(object sender, ImageClickEventArgs e)
        {
            imgBtn.PostBackUrl = "www.google.com";
        }