ASP.NET

protected void Page_Load(object sender, EventArgs e)
   {
       Button mybtn = new Button();
       mybtn.Text = "Dynamic Button";
       Panel1.Controls.Add(mybtn);
       mybtn.Click += new System.EventHandler(mybtn_Click);

   }

   public void mybtn_Click(object sender, EventArgs e)
   {
       Response.Write("You have click on this");
       // you can store session over here
   }

public partial class _Default : System.Web.UI.Page 
{
    Button[] b = new Button[10]; //Create Array of buuton

    protected void Page_Load(object sender, EventArgs e)
    {

        for (int i = 0; i < 10; i++)
        {
            b[i] = new Button(); //Create Button
            //b[i].ID = i;  //Can use ID
            b[i].Text = "Dynamic Button  " + i.ToString() ;
            Panel1.Controls.Add(b[i]);
            //Add Event Handler to that Dynamic button
            b[i].Click += new System.EventHandler(mybtn_Click);
            
        }
    }

    public void mybtn_Click(object sender, EventArgs e)
    {
        //Create a Button that it received
        Button mybtn =sender as Button;
        //You can Do any thing here !!!
        Response.Write(mybtn.Text.ToString());
        // you can store session over here
    }
}