Assembly: System.Windows (in System.Windows.dll)
The same instance of the FrameworkElementAutomationPeer is returned from subsequent calls to this method and to calls to FromElement. The type of the peer is determined by the OnCreateAutomationPeer virtual callback. If UIElement does not implement the callback, no FrameworkElementAutomationPeer is created and this method returns null.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.