WPF 4 ListBox controls - Selection sync

Question

Hi guys,

I have a question.

 

How can I synchronize 4 ListBoxes, when I select any row in any of the ListBoxes(4 of them). I want in every ListBox the same row to be selected like on this image here.

http://i.stack.imgur.com/ncuMW.png

 

This method does not work in WPF I am working on, so I guess its because of the WinForms difference(Or am I wrong?).

I will post you my complete VS solution so you can have complete insight in what I am working on and where do I go wrong.

 

So basically I just want all listBoxes to sync "selected Item" from any listBox, here is my screenshot of my problem

 

http://i.imgur.com/7ggwhP8.png

 

(selection populates in appropriate textBox but it works only for 1 listBox at a time :()and my project is uploaded.

 

Any help is much appreciated, I tried few solutions but still no luck, so I decided to make a post here only and I hope someone will help me out to understand this better.

Best Regards,

Milisav