protected void Page_Load(object sender, EventArgs e)
{
RadioButton rdo1 = new RadioButton();
rdo1.Text = "radion button";
rdo1.CheckedChanged += new EventHandler(rdo1_CheckedChanged);
rdo1.AutoPostBack = true;
form1.Controls.Add(rdo1);
}
void rdo1_CheckedChanged(object sender, EventArgs e)
{
Label lbl1 = new Label();
lbl1.Text = "rdo1 checked Changed";
form1.Controls.Add(lbl1);
}