Sets the focus to this element.
Assembly: UIAutomationProvider (in UIAutomationProvider.dll)
The UI Automation framework will ensure that the part of the interface that hosts this fragment is already focused before calling this method. Your implementation should update only its internal focus state; for example, by repainting a list item to show that it has the focus. If you prefer that UI Automation not focus the parent window, set the ProviderOwnsSetFocus option in ProviderOptions for the fragment root.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.