ASP.NET

ClientScript.RegisterClientScriptBlock(this.GetType(), "", "<script>alert('YES!')</script>");

protected void Page_Load(object sender, EventArgs e)<br />
    {<br />
        RadioButtonList dbl = new RadioButtonList();<br />
        dbl.ID = "asdfdf";<br />
        dbl.Text = "test";<br />
        dbl.SelectedIndexChanged += new EventHandler(dbl_SelectedIndexChanged);<br />
    }<br />
<br />
    void dbl_SelectedIndexChanged(object sender, EventArgs e)<br />
    {<br />
        throw new Exception("The method or operation is not implemented.");<br />
    }

 protected void Page_Load(object sender, EventArgs e)<br />
    {<br />
    <br />
     <br />
        RadioButtonList dbl = new RadioButtonList();<br />
        dbl.ID = "MyID";<br />
        dbl.Items.Add("abhijit");<br />
        dbl.Items.Add("Jana");<br />
        dbl.SelectedIndexChanged += new EventHandler(dbl_SelectedIndexChanged);<br />
        dbl.AutoPostBack = true;<br />
        Panel1.Controls.Add(dbl);<br />
 <br />
  <br />
    }<br />
<br />
    void dbl_SelectedIndexChanged(object sender, EventArgs e)<br />
    {<br />
        throw new Exception("The method or operation is not implemented.");<br />
    }