Gets a value that indicates whether an element is off the screen.
Assembly: System.Windows (in System.Windows.dll)
does not indicate whether the element is visible. In some circumstances, an element is on the screen but is still not visible. For example, if the element is on the screen but obscured by other elements, it might not be visible. In this case, the method returns false.
This implementation does nothing more than calling IsOffscreenCore.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.