I would like to use a Rad Control or two inside Sharepoint.  I'm thinking about using Jan Tielen's smartpart as the Container for ASP.NET Controls which house the Silverlight Control.  But...I need to pass an Id from the Rad Control(like a product Id from the RadCoverflow when selection changes) UP to the ASP.NET Control and Up to the Sharepoint Webpart which will be CONNECTED to other Web Parts.  It will PROVIDE a Filter(Product Id) to other web parts on the page.

Does anyone have experience with this?  Ideas?  Can I even do it?  I am working on this prototype and I have about a week to prove that I can get it done.

Thanks, I really appreciate any help out there.

Hello mark,

You can use a javascript method makes an asynchronous postback inside your asxp page. Moreover, you can call this method in Silverlight by using the following line:

HtmlPage.Window.Invoke("refreshUpdatePanel", (sender as ListBox).SelectedIndex);

The update is  called in the SelectionChanged event. In this example we are using a listbox, but the things are very similar for the CoverFlow as well. Please find attached a simple example that demonstrates how to communicate between Silverlight and an asp.net page.

Sincerely yours,
Hristo Borisov
the Telerik team