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wpf - HierarchicalDataTemplate, VirtualizingStackPanel, Window Resize (maximize)

Posted By:      Posted Date: September 28, 2010    Points: 0   Category :WPF
 

Hi,

I am having a problem with a wpf treeview that uses a HierarchicalDataTemplate in conjunction with a VirtualizingStackPanel. Using the code provided below, I run the application and expand all the treeviewitems.

http://img227.imageshack.us/img227/3536/wpftv03.png

I then make the viewport "small" so that items are virtualized. I scroll to the bottom and select the last item.

http://img291.imageshack.us/img291/9020/wpftv01.png

I then maximize the window :

http://img706.imageshack.us/img706/607/wpftv02.png

It seems that on (but not limited to) Maximize, not all the treeviewitems are being realized. I am stumped what the problem could be. Any help would be appreciated! :D

(this also happens in win7 when you "dock" the app to fill half the screen)

App.xaml



<Application x:Class="WpfApplica


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