I'm currently trying to implement virtualization in a modified TreeView that enables multi-select. Starting with the code in this post, I added the following attribute to the "multiSelectTreeView" element.
VirtualizingStackPanel.IsVirtualizing="True"
However, now that I've done this, I've noticed that the treeview 'forgets' the formatting of the selected items whenever I scroll away from them and return. I thought that this might be fixed by setting the VirtualizationMode to 'Standard' but this hasn't worked. Does anyone have an idea of what I should try next?
