I've some problems with tooltips, the VisualTreeHelper.GetParent can't get the parent.
My app has a TabControl > MyUserControl > Grid > ChartPlotter
I think the problem is to get parent of Grid (which is a UserControl)
LiveToolTipService.SetToolTip(element, "Some tooltip");
element is a ViewportPolyline.
The exception occurs in
var nameScope = NameScope.GetNameScope(parent); // LiveToolTipService - Line 185
Any idea to solve this?