createFromXAMLDownloader error because off content?

Question

Hello.
I've put the content between this text (must in the new release of Silverlight) (http://msdn2.microsoft.com/en-us/library/bb232842.aspx)

// Create the objects from the XAML content.
    Control = sender.getHost();
    var xamlFragment = Control.content.createFromXAMLDownloader(sender);

But I get an error:

In the silverlight.js file by function:
function default_error_handler(sender, args)
Get an alert with among other things.
errorcode: 2207
MethodeName: createFromXAMLDownloader

Does someone have an example where this works well or now what I do wrong?
Bye

Answer 1

I now what i did wrong.
most be:

// the part parameter is set to an empty string.
    var xamlFragment = control.content.createFromXamlDownloader(sender, "");  // behind sender most come: ,"