--- title: "[How Do I:] Use the ASP.NET AJAX ModalPopup Extender Control? | Microsoft Docs" author: JoeStagner description: "Learn how to use the ASP.NET AJAX ModalPopup extender control that comes with the ASP.NET AJAX Control Toolkit. In this video the ModalPopup extender is used..." ms.author: aspnetcontent manager: wpickett ms.date: 01/26/2007 ms.topic: article ms.assetid: 37c50e6c-e34d-4fd0-b272-01950ada7667 ms.technology: dotnet-webforms ms.prod: .net-framework msc.legacyurl: /web-forms/videos/ajax-control-toolkit/how-do-i-use-the-aspnet-ajax-modalpopup-extender-control msc.type: video --- [How Do I:] Use the ASP.NET AJAX ModalPopup Extender Control? ==================== by [Joe Stagner](https://github.com/JoeStagner) Learn how to use the ASP.NET AJAX ModalPopup extender control that comes with the ASP.NET AJAX Control Toolkit. In this video the ModalPopup extender is used to pop open a standard ASP.NET Panel control as a modal dialog box. [▶ Watch video (10 minutes)](https://channel9.msdn.com/Blogs/ASP-NET-Site-Videos/how-do-i-use-the-aspnet-ajax-modalpopup-extender-control) >[!div class="step-by-step"] [Previous](how-do-i-use-the-aspnet-ajax-popup-control-extender.md) [Next](how-do-i-use-the-aspnet-ajax-alwaysvisible-control-extender.md)