ASP.NET AJAX Control Toolkit v20.1.0 - Now Available

ASP.NET Team Blog
10 June 2020

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 v20.1.0) to address the following issues.

Resolved Issues

  • CascadingDropDown continuously refreshes in Firefox 65 (#477)
  • MaskedEditExtender with ClearMaskOnLostFocus=False adds an extra character at the first position (#493)
  • ListSearchExtender does not work in Firefox 66+ (#494, contributed by @TheUlderico)
  • AjaxFileUpload fails with <sessionState cookieless="UseUri"> (#500)
  • ReorderList adds the opacity CSS property to the <LI> element (#503)
  • SCRIPT1028 error in legacy IE (#515, contributed by @SIkebe)
  • Tabs control doesn't preserve the active tab when it contains a LinkButton with a validator (#518)
  • DragPanelExtender - JavaScript errors in IE 11 with non-100% zoom (#522)
  • The onchange handler on a TextBox with AutoComplete is triggered twice in Google Chrome (#529)
  • HtmlEditorExtender.Decode - Remove insecure HTML (#532)

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.

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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.

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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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