RADControls issue in IE10

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  1. Venkatesh
    Venkatesh avatar
    3 posts
    Member since:
    Apr 2009

    Posted 06 Jan 2014 Link to this post


    When i try to open a RADWindow on one of the image/button click i am getting the following error "SCRIPT5007: Unable to get property 'open' of undefined or null reference Telerik.Web.UI.WebResource.axd,". This issue occurs in IE10. The application works fine in other browsers like IE9,8,7,6, Firefox.

    Venkatesh Santhanam
  2. Marin Bratanov
    Marin Bratanov avatar
    4012 posts

    Posted 07 Jan 2014 Link to this post

    Hello Venkatesh,

    Such an error usually means that the script is executed too early. This often happens if you are opening a RadWindow from the server code without using the Sys.Application.Load event, or if the partial postbacks include the RadWindow/RadWindowManager. I advise that you examine the following sticky thread on the subject:  http://www.telerik.com/community/forums/aspnet-ajax/window/opening-radwindow-from-the-server.aspx.

    Also, if your version is old (i.e., released prior to the IE10 release), it is possible, that it may have issues with that browser. In this case you should update to the latest. The second alternative would be to try an X-UA Compatible meta tag to force IE10 in IE8/IE9 mode, but I cannot guarantee this will work.

    Marin Bratanov
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