internal static void InvalidateAutomationAncestors(DependencyObject o)
{
UIElement e = null;
UIElement3D e3d = null;
ContentElement ce = null;
Stack <DependencyObject> branchNodeStack = new Stack <DependencyObject>();
bool continueInvalidation = true;
while (o != null && continueInvalidation)
{
continueInvalidation &= InvalidateAutomationPeer(o, out e, out ce, out e3d);
//
// Invoke InvalidateAutomationAncestorsCore
//
bool continuePastVisualTree = false;
if (e != null)
{
continueInvalidation &= e.InvalidateAutomationAncestorsCore(branchNodeStack, out continuePastVisualTree);
// Get element's visual parent
o = e.GetUIParent(continuePastVisualTree);
}
else if (ce != null)
{
continueInvalidation &= ce.InvalidateAutomationAncestorsCore(branchNodeStack, out continuePastVisualTree);
// Get element's visual parent
o = (DependencyObject)ce.GetUIParent(continuePastVisualTree);
}
else if (e3d != null)
{
continueInvalidation &= e3d.InvalidateAutomationAncestorsCore(branchNodeStack, out continuePastVisualTree);
// Get element's visual parent
o = e3d.GetUIParent(continuePastVisualTree);
}
}
}