Add update panel dynamically

        <pre data-sub="prettyprint:_">
        private Label Label1;

        protected void Page_Load(object sender, EventArgs e)
        {
        UpdatePanel up1 = new UpdatePanel();
        up1.ID = "UpdatePanel1";

        // Define the button
        Button button1 = new Button();
        button1.ID = "Button1";
        button1.Text = "What time is it?";
        button1.Click += new EventHandler(Button1_Click);

        // Define the literals
        LiteralControl lit = new LiteralControl("<br>");

        // Define the label
        Label1 = new Label();
        Label1.ID = "Label1";
        Label1.Text = "[time]";

        // Link controls to the UpdatePanel
        up1.ContentTemplateContainer.Controls.Add(button1);
        up1.ContentTemplateContainer.Controls.Add(lit);
        up1.ContentTemplateContainer.Controls.Add(Label1);

        // Add the UpdatePanel to the list
        this.Form.Controls.Add(up1);
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
        Label1.Text = DateTime.Now.ToShortTimeString();
        }

        </pre>