RadComboBox disabled on IE9 Windows 2008

[jk]

I have recently upgraded the Telerik.Web.UI.dll to version 2013.3.1114.40. When I tested in my dev environment, everything works as expected. However our QA team has an IE9 browser running on Windows Server 2008. When they point that browser at the application hosted in my dev environment (which is running on Windows 7), the RadComboBox becomes unusable. When you try to click on it, nothing happens. There are many "$telerik is undefined" javascript errors. I have reproduced this behavior using another IE9 browser on a different Windows 2008 box. However, as long as I'm using IE9 on any other machine (running Windows 7), the controls work fine.

I assume that the issue is with the client, maybe some security setting related to Windows 2008/IE9. I have disabled IE ESC and that did not fix the issue. What is causing this problem?

[Nencho]

Hi,

I would suggest you to refer to the following articles, demonstrating approaches for overcoming the faced issue:

• http://blogs.telerik.com/aspnetmvcteam/posts/08-07-18/web-resources-demystified-part-3-troubleshooting.aspx
• http://www.telerik.com/help/aspnet-ajax/introduction-troubleshooting.html

Regards,
Nencho
Telerik

[jk]

The issue ended up being the one described in this article: http://www.telerik.com/community/forums/aspnet-ajax/general-discussions/not-implemented-javascript-error-under-ie9-with-q3-2013-sp1.aspx

The latest hotfix solved the issue.

[Nencho]

Hello,

Thank you for sharing your solution with the community.

Regards,
Nencho
Telerik