There are some changes for the OnLoad event handler from older beta versions (code name WPF/E). In Silverlight 1.0 beta you will use following event handler, now:

function handleLoad(control, userContext, rootElement)
{
  // Add your code here
} 

The first argument is a reference to the host control, so there is no need to call sender.getHost() inside the load handler.

Second argument is the user context which is a simple string that you can pass with the properties when instantiating the control with createSilverlight().

Last parameter will be a reference to the root element hosted by the Silverlight control.

The createSilverlight() call looks now like this:

function createSilverlight()
{  
   Sys.Silverlight.createObject(
      "test.xaml",
      document.getElementById("WpfeControl1Host"), 
      "wpf",
      {
         width:"100%", height:"100%", 
         inplaceInstallPrompt:false, background:'white', 
         isWindowless:'true', framerate:'30', version:'0.95',
         enableHtmlAccess:'true'
      },
      {onError:null, onLoad:MyLoad},
      null,
      {text:"my user context"}
   );
}

For the userContext in the documentation I found: "userContext of type Object". Until today the userContext is only loop through, so you can use any object, string or whatever you need.

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