title: How to declare Balloon popup extender Dynamically using C#?
body: <p>Here is my code:</p>
  
  <pre><code>protected void Page_Load(object sender, EventArgs e)
  {
      Button btn = new Button();
      btn.Text = "Button";
      btn.ID = "Button1";
      pnlMain.Controls.Add(btn);
      Panel pnl = new Panel();
      pnl.ID = "pnl";
      Label lbl = new Label();
      lbl.ID = "lbl";
      lbl.Text = "Hi this is my Balloon popup";
      pnl.Controls.Add(lbl);
      pnlMain.Controls.Add(pnl);
      BalloonPopupExtender  balloonPopupExtender1= new BalloonPopupExtender();
      balloonPopupExtender1.TargetControlID = btn.ID;
      balloonPopupExtender1.BalloonPopupControlID = pnl.ID;
      balloonPopupExtender1.BalloonSize = BalloonPopupSize.Small;
      balloonPopupExtender1.BalloonStyle = BalloonPopupStyle.Rectangle;
      balloonPopupExtender1.DisplayOnMouseOver = true;
      balloonPopupExtender1.DisplayOnClick = true;
      balloonPopupExtender1.DisplayOnFocus = false;
  }
  </code></pre>
  
  <p>This code executes correctly but balloon popup does not show up...</p>