Setting Focus to a silverlight 4 application in an MVC 3 view - asp.net-mvc-3

Question

I'm having trouble with this. While it just means people have to click on the object to get it to respond, I think it looks unprofessional as hell.
Here is the view (including my n'th attempt):
#{
ViewBag.Title = "Show";
//Layout = "~/Views/Shared/_Empty.cshtml";
Layout = "";
}
<script src="#Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/modernizr-1.7.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/jquery-ui-1.8.11.min.js")" type="text/javascript"></script>
<script src="#Url.Content("~/Scripts/jquery.alerts.js")" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$('#HDViewerSL').focus();
});
</script>
<div id="silverlightControlHost" >
<object id='HDViewerSL' data="data:application/x-silverlight," type="application/x-silverlight-2" width="100%" height="100%">
<param name="minRuntimeVersion" value="4.0.60310.0"/>
<param name="autoUpgrade" value="true"/>
<param name="source" value="#ViewBag.HDViewSLXap"/>
<param name="background" value="black"/>
<param name="initParams" value="source=#ViewBag.ImagesUrl,id=#ViewBag.Id"/>
<div style="text-align:center;font-family:Arial;margin-top:50px;">
This page requires Silverlight 4.<br />
<br />
<a href="http://go.microsoft.com/fwlink/?LinkID=149156&v=4.0.60310.0" style="text-decoration: none;">
<img src="http://go.microsoft.com/fwlink/?LinkId=161376" alt="Get Microsoft Silverlight" style="border-style: none"/>
</a>
</div>
</object>
<iframe style='visibility:hidden;height:0;width:0;border:0px'></iframe>
</div>
In my Silverlight constructor, I have:
this.GotFocus += new RoutedEventHandler(HDViewer_GotFocus);
This event is never firing.
Anyone know how to get the focus set on the object?
Thanks,
David

Answer 1

You can request the plugin to be focused from within you Silverlight application using HtmlPage.Plugin.Focus(); The Loaded event of the MainPage is normally the right place to do this.

Answer 2

I was getting "Invalid Operation Exception" with that code, but I had it in the constructor. At your suggestion #Avee I put it in the constructor instead of in the load event and there was no change. The problem was that I needed to add:
<param name="enablehtmlaccess" value="true"/>
to the Silverlight object's parameters in the hosting page. (ref: http://weblogs.asp.net/albertpascual/archive/2009/04/13/silverlight-exception-the-dom-scripting-bridge-is-disabled.aspx)
Thanks!
David