WPF preserve Tab control state

Question

I have read the posts @ How to stop Wpf Tabcontrol to unload Visual tree on Tab change, but I could not get it work, I must have missed something. Pls help. thanks

Answer 1

I gave up with the workaround, it just did not work in my case. I purchase a third party WPF library (DevExpress WPF) which solves the issue. thanks