ASP.NET AJAX Control Toolkit v19.1.0 - Now Available

ASP.NET Team Blog
03 July 2019

A few years ago, we took over maintenance and guidance for the ASP.NET AJAX Control Toolkit project. Please refer to this blog post for more information on the project and why we stepped in to assist.

As part of our ongoing commitment to the project, we’ve released an update (ASP.NET AJAX Control Toolkit v19.1.0) to address the following issues.


  • Visual Studio 2019 Support
  • Security hardening: HTML-encode file names in AjaxFileUpload (#483)

Resolved Issues

  • AutoCompleteExtender: the TextChanged event is not fired in Edge (#458)
  • Rating: The raise_mouseOver method has an invalid argument name (#461)
  • AsyncFileUpload changes the frame target to _top (#466)
  • HtmlEditorExtender unconditionally removes tags with data URLs (#467)
  • NRE in IsLocalizationEnabled() within a PageAsyncTask (#486)

Ready to Upgrade?

To update the ASP.NET AJAX Control Toolkit, please download our most recent installer using the link below.


Or, if you prefer, use Nuget:

ASP.NET AJAX Control Toolkit Nuget package

As always, we welcome your feedback. Please share your thoughts on this update via GitHub.

Want More? Try the DevExpress ASP.NET Subscription for 30-days

We’d like to thank you for installing the DevExpress Edition of the AJAX Control Toolkit and look forward to your feedback as you begin leveraging its capabilities.

If you require additional UI controls for your ASP.NET WebForms application, we invite you to download and try a free 30-day evaluation of our ASP.NET Subscription. With over 100 UI controls, the DevExpress ASP.NET Subscription helps you build your best, and deliver elegant line-of-business applications in the shortest possible time. For a complete list of products and features in our ASP.NET Subscription, please refer to the following webpage.

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The following free DevExpress product offers remain available. Should you have any questions about the free offers below, please submit a ticket via the DevExpress Support Center at your convenience. We'll be happy to follow-up.
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