RadComboBox Error: JavaScript runtime error: Unable to get property 'documentElement' of undefined or null reference

2 posts, 0 answers
  1. Devendra
    Devendra avatar
    1 posts
    Member since:
    Apr 2013

    Posted 07 Oct 2013 Link to this post

    I upgrade to IE 10 today and was debugging my website that uses Telerik AJAX Controls (Version 2011.2.915.40) and am getting a

    JavaScript runtime error: Unable to get property 'documentElement' of undefined or null reference


    this happens when I click the arrow on the RadComboBox (also happens when I hover over a RadGrid).
    I noticed that it happens only when I am debugging the site on IE10 (Even happens if I choose 'Start without debugging' option in VS 2010).
    I found that the java script error is occurred inside dynamically loaded java script file “Telerik.Web.UI.Common.Core.js” at statement (var C=a.document.documentElement

    ) by HttpHandler “Telerik.Web.UI.WebResource.axd” for Telerik control.

    If I host the site on IIS 7.5 and open it in IE 10, then I don't get the JavaScript error, however the RadComboBox does not drop down.
  2. Plamen
    Admin
    Plamen avatar
    2729 posts

    Posted 10 Oct 2013 Link to this post

    Hello,

     
    The issue is caused because the version of RadControls you are using is created in September 2011 and IE10 was officially released on 4 September 2012. In such case I will recommend you to update your RadControls version.

    Hope this will explain the issue.

    Regards,
    Plamen
    Telerik
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