TreeView in MasterPage.

Hello,
           I m having a treeView in MasterPage. I have OnSelectedNodeChanged Event working everytime when I selected on Node.
 
It works fine for me. Now, If I select particular Node, I want to display the node value in ContentPage.
Events are firing like this.
1) ContentPage - Page_Load
2)MasterPage - Page_init
3)MasterPage -Page_Load
4)MasterPage - OneSelectedNodeChanged
 
OnSelectedNodeChanged is the last event firing, So, I m unable to display the node value in ContentPage
...