--- title: "[How Do I:] Use the ASP.NET AJAX DropDown Control? | Microsoft Docs" author: JoeStagner description: "With the DropDown control extender from the ASP.NET AJAX Control Toolkit, you can present the user with a drop-down list of options that trigger a partial-pa..." ms.author: aspnetcontent manager: wpickett ms.date: 03/30/2007 ms.topic: article ms.assetid: a997a9f8-9f71-4b9e-b7ed-f8e3a0daa576 ms.technology: dotnet-webforms ms.prod: .net-framework msc.legacyurl: /web-forms/videos/ajax-control-toolkit/how-do-i-use-the-aspnet-ajax-dropdown-control msc.type: video --- [How Do I:] Use the ASP.NET AJAX DropDown Control? ==================== by [Joe Stagner](https://github.com/JoeStagner) With the DropDown control extender from the ASP.NET AJAX Control Toolkit, you can present the user with a drop-down list of options that trigger a partial-page update elsewhere on the Web page. The option selected by the user is passed to the server, allowing your server-side code to process the selection before completing the partial-page update. [▶ Watch video (11 minutes)](https://channel9.msdn.com/Blogs/ASP-NET-Site-Videos/how-do-i-use-the-aspnet-ajax-dropdown-control) >[!div class="step-by-step"] [Previous](how-do-i-configure-the-aspnet-ajax-calendar-control.md) [Next](how-do-i-use-the-aspnet-ajax-maskededit-controls.md)