---
uid: web-forms/videos/ajax-control-toolkit/how-do-i-use-the-aspnet-ajax-popup-control-extender
title: "[How Do I:] Use the ASP.NET AJAX Popup Control Extender? | Microsoft Docs"
author: JoeStagner
description: "This video demonstrates the use of the Popup control extender that ships with the ASP.NET AJAX Control Toolkit. Learn how to extend a TextBox control so that..."
ms.author: aspnetcontent
manager: wpickett
ms.date: 01/26/2007
ms.topic: article
ms.assetid: ecd34391-958f-410c-849d-cfaa2dd414dd
ms.technology: dotnet-webforms
ms.prod: .net-framework
msc.legacyurl: /web-forms/videos/ajax-control-toolkit/how-do-i-use-the-aspnet-ajax-popup-control-extender
msc.type: video
---
[How Do I:] Use the ASP.NET AJAX Popup Control Extender?
====================
by [Joe Stagner](https://github.com/JoeStagner)

This video demonstrates the use of the Popup control extender that ships with the ASP.NET AJAX Control Toolkit. Learn how to extend a TextBox control so that, when it receives focus, a popup dialog will appear with a list of options.

[▶ Watch video (8 minutes)](https://channel9.msdn.com/Blogs/ASP-NET-Site-Videos/how-do-i-use-the-aspnet-ajax-popup-control-extender)

>[!div class="step-by-step"]
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