JavaScript error when using ReportViewer in RadWindow

[mc2000]

Hi I have a asp.net report viewer control which has been working fine as a dynamically loaded user control in a asp.net Web page. I have been adding the item to a content placeholder using the controls.add method of an update panel. I wanted to change the functionality to load the usercontrol into a RadWindow. Nothing else has changed at all, except for I am trying to add my control to an update panel in a RadWindow

<telerik:RadWindow ID="DocumentWindow" runat="server" Modal="True" VisibleOnPageLoad="false"
     Behaviors="Close" AutoSize="false" Height="480" Width = "640">
     <ContentTemplate>
         <asp:UpdatePanel ID="DocumentWindowUpdatePanel" runat="server" UpdateMode="Always">
         <ContentTemplate>
         </ContentTemplate>
         </asp:UpdatePanel>
     </ContentTemplate>
 </telerik:RadWindow>

The RadWindow comes up on the page and the control "appears" to be loading inside. However, there is a JavaScript error being thrown "Expected ;" and none of my report contents are displayed. Also, when I click on the refresh icon I get: "OnCommand Refresh". What am I missing here? Thanks! 

[Steve]

Hello mc2000,

First verify whether your loading logic is working fine, by eliminating Telerik Reporting and test loading a user control in which a button updates a label with the current DateTime. If this is working fine and in order to get more information about the actual problem:

• show the Output window in Visual Studio and check whether there is an exception when you're running your application in debug mode.
• enable the CLR exceptions from Debug --> Exceptions menu in Visual Studio and run your project in debug.

If you are unable to identify the issue, please open a support ticket and attach a sample runnable project that exhibits the problem. Once we review it, we would be able to provide you with more information.

Greetings,
Steve
the Telerik team