void ClearRoot ()
{
if (_contentRoot != null)
Mono.NativeMethods.uielement_element_removed (native, _contentRoot.native);
_contentRoot = null;
InvalidateMeasure ();
}
static void ClearRoot(IntPtr target, IntPtr calldata, IntPtr closure) { ContentPresenter presenter = (ContentPresenter)NativeDependencyObjectHelper.FromIntPtr(closure); presenter.ClearRoot(); }