WPF events don't work on webclient

WPF events don't work on webclient

Hello all
We create wpf menu control that use instead of the project main menu on webclients. We assign to events of wpf menu item function type screen switch (for example). Unfortunately this function don't execute on webclient.
Where can be a problem? We try demo version of WEB Server. May be it's a problem for demo version only.
We use Windows 7, IE8 and Firefox and Zenon v7.11 build 7770 32bit and demo version WEB Server.
XAML file of our wpf control you can find in attachmets.
Thanks for your help

This is a migrated post! Originally posted on 02.04.2014 by user altera. Please be aware that information can be outdated.