validationFailed handler not working

[Tim]

I am trying to get jquery to handle the delivery of a message if the user tries to upload a file that is open. I am using the sample from here to work with. I know I must have missed something because the example from the link does what I want it to do but I am getting the script errors from below from my page.

Microsoft JScript runtime error: Exception thrown and not caught
Microsoft JScript runtime error: Unhandled Error in Silverlight Application [ScriptObject_InvokeFailed]

confusing because this is not a silverlight application but an ASP.NET

here is my client side code from the .ascx file.

<telerik:RadCodeBlock ID="RadFileUploadCodeBlock" runat="server">

    <script type="text/javascript">
        //<![CDATA[
        function validationFailed(sender, eventArgs) {
            $(".ErrorHolder").append("<p>Validation failed for '" + eventArgs.get_fileName() + "'.</p>").fadeIn("slow");
        }
        function closeDataContainer() {
            $('div[id$=datacontainer]').hide('slow');
        }
        //]]>
    </script>

</telerik:RadCodeBlock>


<div id="container">
    <div id="content-container">
        <div id="content">
            <telerik:RadProgressManager runat="server" ID="RadProgressManager1" />
            <telerik:RadAsyncUpload runat="server" ID="RadAsyncUpload1" MultipleFileSelection="Disabled"
                OnClientValidationFailed="validationFailed" AllowedFileExtensions="xls, xlsx"
                AutoAddFileInputs="True" Height="25px" Width="250px">
                <FileFilters>
                    <telerik:FileFilter Description="*.xls; *. xlsx" Extensions="xls, xlsx"></telerik:FileFilter>
                </FileFilters>
            </telerik:RadAsyncUpload>
            Select files to upload (xls, xlsx)
        </div>
        <div id="aside">
            <asp:Button runat="server" ID="BtnSubmit" Text="Process File" OnClick="BtnSubmit_OnClick" />
        </div>
        <telerik:RadProgressArea runat="server" ID="RadProgressArea1" Width="582px">
        </telerik:RadProgressArea>
        <div id="Div1">
            <asp:PlaceHolder ID="MessagePlaceHolder" Visible="false" runat="server"></asp:PlaceHolder>
        </div>
        <!-- this is used for client side delivery of AsyncUpload Failure messages -->
        <div class="ErrorHolder">
        </div>
    </div>
</div>

[Plamen]

Hello Tim,

 
One of the RadAsyncUpload's upload modes uses Silverlight. You can disable it by setting the DisablePlugins="true" property.

Please find attached a sample project. If you still experience the issue, could you please modify the test project so I can see the error locally?

Hope this will be helpful.

Greetings,
Plamen Zdravkov
the Telerik team