Umbraco Version: 4.0.2

ASP.NET Version: 2.0

Windows 7 & IIS 7

I have a customer usercontrol with an asp:detailsview that is populated when a parent item is selected from an asp:gridview. Inside the detailsview is an ItemTemplate where I am trying to display a flash swf file from the media library based on the id that is returned when the detailsview is bound. The problem I have it the flash <embed> and <object> tags are not databound, so I can't simply grab the bound value and update the tags.

Here is a the code from the custom usercontrol:

<asp:DetailsView ID="Detail" runat="server" DataSourceID="DetailData" AutoGenerateRows="false" BorderWidth="0" CellPadding="5" OnDataBound="Detail_Bound">
    <Fields>
        <asp:TemplateField HeaderText="Demonstration Movie">
            <ItemTemplate>
                
                <script type="text/javascript">
                    AC_FL_RunContent('codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0', 'width', '640', 'height', '520', 'src', '/flash/movie-container', 'FlashVars', 'exercise=<%# theFile %>', 'quality', 'high', 'pluginspage', 'http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash', 'movie', '/flash/movie-container'); //end AC code
                </script><noscript><object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" width="640" height="520">
                  <param name="movie" value="/flash/movie-container.swf" />
                  <param name="quality" value="high" />
                  <param name="FlashVars" value="exercise=<%# theFile %>" />
                  <embed src="/flash/movie-container.swf" quality="high" FlashVars="exercise=<%# theFile %>" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="640" height="520"></embed>
                </object></noscript>
            </ItemTemplate>
        </asp:TemplateField>
    </Fields>
</asp:DetailsView>

in the codebehind:

public string somestring(string stringID)
        {
            string theVideo;
            if (String.IsNullOrEmpty(stringID) == true)
            {
                theVideo = "/flash/no-img.swf";
                return theVideo;
            }
            else
            {
                int eID = Convert.ToInt32(stringID);
                theVideo = umbraco.library.GetMedia(eID, false).Current.SelectSingleNode("//data[@alias=\"umbracoFile\"]").Value;
                return theVideo;
            }
        }
        protected void Detail_Bound(object sender, EventArgs e)
        {
            string theFileID = this.Eval("Video").ToString();
            theFile = somestring(theFileID);
        }

the error i receive when i select an item from the gridview:

Databinding methods such as Eval(), XPath(), and Bind() can only be used in 
the context of a databound control.