1. Andrew
    Andrew avatar
    176 posts
    Member since:
    Jun 2009

    Posted 20 Feb 2012 Link to this post

    I am trying to use the following code from your demo to try and use the windows control:

    function openRadWin() {
            radopen("http://www.telerik.com", "RadWindow1");

    <telerik:RadWindowManager ID="RadWindowManager1" runat="server" EnableShadow="true">
            <telerik:RadWindow ID="RadWindow1" runat="server" ShowContentDuringLoad="false" Width="400px"
                Height="400px" Title="Telerik RadWindow" Behaviors="Default">

    <button style="width: 150px; margin-bottom: 3px;" onclick="openRadWin(); return false;">open RadWindow</button>

    I get an error, screen capture attached. 

  2. Answer
    Marin Bratanov
    Marin Bratanov avatar
    5812 posts

    Posted 21 Feb 2012 Link to this post

    Hi Andrew,

    This error is observed when an older version (prior to Q1 2011) is used to open a RadWindow under IE9. This browser introduced a breaking change in the way iframes are handled and thus the first version of the RadControls that can work with it is Q1 2011. More information about this scenario is available in this forum thread.

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