Gets a reference to the Document Object Model (DOM) element or object that raised the event.
Assembly: System.Windows.Browser (in System.Windows.Browser.dll)
Only Firefox browsers can return a window reference (HtmlObject reference in managed code) in the property. Internet Explorer returns only element references (HtmlElement in managed code), and will always return null for events that are raised by the window or by document objects.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.